Add OSSF Scorecard security workflow

[5minpause]

I tested this project using OSSF Scorecard by the Open Source Security Foundation. Their aim is:

We created Scorecard to help open source maintainers improve their security best practices and to help open source consumers judge whether their dependencies are safe.

Scorecard is an automated tool that assesses a number of important heuristics ("checks") associated with software security and assigns each check a score of 0-10. You can use these scores to understand specific areas to improve in order to strengthen the security posture of your project. You can also assess the risks that dependencies introduce, and make informed decisions about accepting these risks, evaluating alternative solutions, or working with the maintainers to make improvements.

Unfortunately, this project only received a value of 7.5/10

Please follow these steps to add the Action to the codescanning suite to ensure this project continues to stays safe
Steps to install the workflow

Results of the scan

RESULTS
-------
Aggregate score: 7.5 / 10

Check scores:
|---------|------------------------|--------------------------------|-----------------------------------------------------------------------------------------------------------------------|
|  SCORE  |          NAME          |             REASON             |                                               DOCUMENTATION/REMEDIATION                                               |
|---------|------------------------|--------------------------------|-----------------------------------------------------------------------------------------------------------------------|
| 10 / 10 | Binary-Artifacts       | no binaries found in the repo  | https://github.com/ossf/scorecard/blob/27cfe92ed356fdb5a398c919ad480817ea907808/docs/checks.md#binary-artifacts       |
|---------|------------------------|--------------------------------|-----------------------------------------------------------------------------------------------------------------------|
| ?       | Branch-Protection      | internal error: error during   | https://github.com/ossf/scorecard/blob/27cfe92ed356fdb5a398c919ad480817ea907808/docs/checks.md#branch-protection      |
|         |                        | branchesHandler.setup:         |                                                                                                                       |
|         |                        | internal error:                |                                                                                                                       |
|         |                        | githubv4.Query: Resource not   |                                                                                                                       |
|         |                        | accessible by personal access  |                                                                                                                       |
|         |                        | token                          |                                                                                                                       |
|---------|------------------------|--------------------------------|-----------------------------------------------------------------------------------------------------------------------|
| 10 / 10 | CI-Tests               | 24 out of 24 merged PRs        | https://github.com/ossf/scorecard/blob/27cfe92ed356fdb5a398c919ad480817ea907808/docs/checks.md#ci-tests               |
|         |                        | checked by a CI test -- score  |                                                                                                                       |
|         |                        | normalized to 10               |                                                                                                                       |
|---------|------------------------|--------------------------------|-----------------------------------------------------------------------------------------------------------------------|
| 0 / 10  | CII-Best-Practices     | no badge detected              | https://github.com/ossf/scorecard/blob/27cfe92ed356fdb5a398c919ad480817ea907808/docs/checks.md#cii-best-practices     |
|---------|------------------------|--------------------------------|-----------------------------------------------------------------------------------------------------------------------|
| 10 / 10 | Code-Review            | all changesets reviewed        | https://github.com/ossf/scorecard/blob/27cfe92ed356fdb5a398c919ad480817ea907808/docs/checks.md#code-review            |
|---------|------------------------|--------------------------------|-----------------------------------------------------------------------------------------------------------------------|
| 10 / 10 | Contributors           | 90 different organizations     | https://github.com/ossf/scorecard/blob/27cfe92ed356fdb5a398c919ad480817ea907808/docs/checks.md#contributors           |
|         |                        | found -- score normalized to   |                                                                                                                       |
|         |                        | 10                             |                                                                                                                       |
|---------|------------------------|--------------------------------|-----------------------------------------------------------------------------------------------------------------------|
| 10 / 10 | Dangerous-Workflow     | no dangerous workflow patterns | https://github.com/ossf/scorecard/blob/27cfe92ed356fdb5a398c919ad480817ea907808/docs/checks.md#dangerous-workflow     |
|         |                        | detected                       |                                                                                                                       |
|---------|------------------------|--------------------------------|-----------------------------------------------------------------------------------------------------------------------|
| 10 / 10 | Dependency-Update-Tool | update tool detected           | https://github.com/ossf/scorecard/blob/27cfe92ed356fdb5a398c919ad480817ea907808/docs/checks.md#dependency-update-tool |
|---------|------------------------|--------------------------------|-----------------------------------------------------------------------------------------------------------------------|
| 0 / 10  | Fuzzing                | project is not fuzzed          | https://github.com/ossf/scorecard/blob/27cfe92ed356fdb5a398c919ad480817ea907808/docs/checks.md#fuzzing                |
|---------|------------------------|--------------------------------|-----------------------------------------------------------------------------------------------------------------------|
| 10 / 10 | License                | license file detected          | https://github.com/ossf/scorecard/blob/27cfe92ed356fdb5a398c919ad480817ea907808/docs/checks.md#license                |
|---------|------------------------|--------------------------------|-----------------------------------------------------------------------------------------------------------------------|
| 10 / 10 | Maintained             | 14 commit(s) out of 30 and 1   | https://github.com/ossf/scorecard/blob/27cfe92ed356fdb5a398c919ad480817ea907808/docs/checks.md#maintained             |
|         |                        | issue activity out of 30 found |                                                                                                                       |
|         |                        | in the last 90 days -- score   |                                                                                                                       |
|         |                        | normalized to 10               |                                                                                                                       |
|---------|------------------------|--------------------------------|-----------------------------------------------------------------------------------------------------------------------|
| ?       | Packaging              | no published package detected  | https://github.com/ossf/scorecard/blob/27cfe92ed356fdb5a398c919ad480817ea907808/docs/checks.md#packaging              |
|---------|------------------------|--------------------------------|-----------------------------------------------------------------------------------------------------------------------|
| 7 / 10  | Pinned-Dependencies    | dependency not pinned by hash  | https://github.com/ossf/scorecard/blob/27cfe92ed356fdb5a398c919ad480817ea907808/docs/checks.md#pinned-dependencies    |
|         |                        | detected -- score normalized   |                                                                                                                       |
|         |                        | to 7                           |                                                                                                                       |
|---------|------------------------|--------------------------------|-----------------------------------------------------------------------------------------------------------------------|
| 10 / 10 | SAST                   | SAST tool is run on all        | https://github.com/ossf/scorecard/blob/27cfe92ed356fdb5a398c919ad480817ea907808/docs/checks.md#sast                   |
|         |                        | commits                        |                                                                                                                       |
|---------|------------------------|--------------------------------|-----------------------------------------------------------------------------------------------------------------------|
| 0 / 10  | Security-Policy        | security policy file not       | https://github.com/ossf/scorecard/blob/27cfe92ed356fdb5a398c919ad480817ea907808/docs/checks.md#security-policy        |
|         |                        | detected                       |                                                                                                                       |
|---------|------------------------|--------------------------------|-----------------------------------------------------------------------------------------------------------------------|
| 0 / 10  | Signed-Releases        | 0 out of 5 artifacts are       | https://github.com/ossf/scorecard/blob/27cfe92ed356fdb5a398c919ad480817ea907808/docs/checks.md#signed-releases        |
|         |                        | signed or have provenance      |                                                                                                                       |
|---------|------------------------|--------------------------------|-----------------------------------------------------------------------------------------------------------------------|
| 9 / 10  | Token-Permissions      | non read-only tokens detected  | https://github.com/ossf/scorecard/blob/27cfe92ed356fdb5a398c919ad480817ea907808/docs/checks.md#token-permissions      |
|         |                        | in GitHub workflows            |                                                                                                                       |
|---------|------------------------|--------------------------------|-----------------------------------------------------------------------------------------------------------------------|
| 9 / 10  | Vulnerabilities        | 1 existing vulnerabilities     | https://github.com/ossf/scorecard/blob/27cfe92ed356fdb5a398c919ad480817ea907808/docs/checks.md#vulnerabilities        |
|         |                        | detected                       |                                                                                                                       |
|---------|------------------------|--------------------------------|-----------------------------------------------------------------------------------------------------------------------|

[coliff]

Thanks for opening the issue and reporting this! I installed the OSSF scorecard workflow on a number of projects last year and found it to be too noisy and reports some questionable or non-applicable best practises and ended up removing it.

I don't think we should install the OSSF scorecard workflow on H5BP projects but we can review the results of the scan you've provided above and see if there is any action we can take to improve things.

[5minpause]

I can understand that security notifications can become noisy. Then again, possibly they have to be, to be of any use?!

I think the best things to improve first might be:

|---------|------------------------|--------------------------------|-----------------------------------------------------------------------------------------------------------------------|
| 7 / 10  | Pinned-Dependencies    | dependency not pinned by hash  | https://github.com/ossf/scorecard/blob/27cfe92ed356fdb5a398c919ad480817ea907808/docs/checks.md#pinned-dependencies    |
|         |                        | detected -- score normalized   |                                                                                                                       |
|         |                        | to 7                           |                                                                                                                       |
|---------|------------------------|--------------------------------|-----------------------------------------------------------------------------------------------------------------------|
| 0 / 10  | Security-Policy        | security policy file not       | https://github.com/ossf/scorecard/blob/27cfe92ed356fdb5a398c919ad480817ea907808/docs/checks.md#security-policy        |
|         |                        | detected                       |                                                                                                                       |
|---------|------------------------|--------------------------------|-----------------------------------------------------------------------------------------------------------------------|
| 0 / 10  | Signed-Releases        | 0 out of 5 artifacts are       | https://github.com/ossf/scorecard/blob/27cfe92ed356fdb5a398c919ad480817ea907808/docs/checks.md#signed-releases        |
|         |                        | signed or have provenance      |                                                                                                                       |
|---------|------------------------|--------------------------------|-----------------------------------------------------------------------------------------------------------------------|
| 9 / 10  | Token-Permissions      | non read-only tokens detected  | https://github.com/ossf/scorecard/blob/27cfe92ed356fdb5a398c919ad480817ea907808/docs/checks.md#token-permissions      |
|         |                        | in GitHub workflows            |                                                                                                                       |
|---------|------------------------|--------------------------------|-----------------------------------------------------------------------------------------------------------------------|
| 9 / 10  | Vulnerabilities        | 1 existing vulnerabilities     | https://github.com/ossf/scorecard/blob/27cfe92ed356fdb5a398c919ad480817ea907808/docs/checks.md#vulnerabilities        |
|         |                        | detected                       |                                                                                                                       |
|---------|------------------------|--------------------------------|-----------------------------------------------------------------------------------------------------------------------|