[tanium] Add options to configure non-public S3

[chrisberkhout]

Proposed commit message

[tanium] Add options to configure non-public S3

The options are:
- endpoint
- region
- extenal_id
- default_region

This also makes all `aws-s3.yml.hbs` files identical, and matches the
S3 sections of `./data_stream/*/manifest.yml` files.

Checklist

• I have reviewed tips for building integrations and this pull request is aligned with them.
• I have verified that all data streams collect metrics or logs.
• I have added an entry to my package's changelog.yml file.
• I have verified that Kibana version constraints are current according to guidelines.
• I have verified that any added dashboard complies with Kibana's Dashboard good practices

Screenshots

Here's where the new options appear in the policy editor UI:

[elasticmachine]

Pinging @elastic/security-service-integrations (Team:Security-Service Integrations)

[elastic-vault-github-plugin-prod]

🚀 Benchmarks report

To see the full report comment with /test benchmark fullreport

[elasticmachine]

💚 Build Succeeded

• Buildkite Build
• Commit: a86e619

cc @chrisberkhout

[elastic-vault-github-plugin-prod]

Package tanium - 1.17.0 containing this change is available at https://epr.elastic.co/package/tanium/1.17.0/