Add license scan badge to the README

[eddie-knight]

Part of #1508.

It's not a security item, but maintainers should be able to generate a license scan badge really easily using FOSSA (the alternative is a paid Snyk tool). Once a license scan badge is in the repo, that license scanning check should go green.

1. Maintainer should sign in to https://fossa.com using GitHub auth
2. Authorize connectivity, add/import this repo, and begin the scan
3. After the import is completed, a license badge will be generated, see image below (click badge to open modal)
4. Add scan to CI (ref)

[pdrastil]

@mkilchhofer Can you take a look into this?

[mkilchhofer]

@crenshaw-dev
Can we use snyk as well? I see that in our (community) repository we inherit the token for Snyk. Can we try the workflow of argo-cd?

https://github.com/argoproj/argo-cd/blob/776d8f97ccc95584b7ac586f0e7091819e39f583/.github/workflows/update-snyk.yaml#L1-L36

[eddie-knight]

@mkilchhofer Argo CD doesn't currently have License Scanning identified by CLOMonitor.

ref: https://clomonitor.io/projects/cncf/argo#argo-cd_license

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[mkilchhofer]

not stale

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.