ci(github-actions): implement dependency review workflow

[ogruene]

Add Dependency Review Workflow

Automates license compliance checks on every PR targeting main, enforcing Eclipse Foundation license policy.

What it does

• Triggers on every pull request targeting main
• Fetches approved and valid licenses dynamically from the Eclipse Foundation license API — always up to date, no hardcoded list
• Merges project-specific license allowances from .github/additional-allowed-licenses.txt
• Runs actions/dependency-review-action@v5 pinned to a specific commit SHA for supply chain safety
• Posts a license and vulnerability summary comment directly on the PR
• Shows available patched versions for any vulnerable dependency

Additional allowed licenses

License	Reason
LicenseRef-scancode-google-patent-license-golang	Required for Go standard library dependencies

Permissions

Runs with minimal permissions: contents: read, pull-requests: write (needed for PR comment).

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

OpenSSF Scorecard

Package	Version	Score	Details
actions/actions/checkout	3d3c42e5aac5ba805825da76410c181273ba90b1	🟢 6.4	Details Check Score Reason Code-Review 🟢 10 all changesets reviewed Maintained 🟢 5 7 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 5 Binary-Artifacts 🟢 10 no binaries found in the repo Dangerous-Workflow 🟢 10 no dangerous workflow patterns detected Token-Permissions ⚠️ 0 detected GitHub workflow tokens with excessive permissions CII-Best-Practices ⚠️ 0 no effort to earn an OpenSSF best practices badge detected Pinned-Dependencies 🟢 3 dependency not pinned by hash detected -- score normalized to 3 License 🟢 10 license file detected Fuzzing ⚠️ 0 project is not fuzzed Packaging ⚠️ -1 packaging workflow not detected Signed-Releases ⚠️ -1 no releases found Security-Policy 🟢 9 security policy file detected SAST 🟢 10 SAST tool is run on all commits Branch-Protection 🟢 6 branch protection is not maximal on development and all release branches
actions/actions/dependency-review-action	a1d282b36b6f3519aa1f3fc636f609c47dddb294	🟢 7.7	Details Check Score Reason Dangerous-Workflow 🟢 10 no dangerous workflow patterns detected Security-Policy 🟢 9 security policy file detected Packaging ⚠️ -1 packaging workflow not detected Code-Review 🟢 10 all changesets reviewed Maintained 🟢 10 28 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10 Binary-Artifacts 🟢 10 no binaries found in the repo Token-Permissions 🟢 9 detected GitHub workflow tokens with excessive permissions CII-Best-Practices ⚠️ 0 no effort to earn an OpenSSF best practices badge detected Pinned-Dependencies ⚠️ 1 dependency not pinned by hash detected -- score normalized to 1 Fuzzing ⚠️ 0 project is not fuzzed License 🟢 10 license file detected Signed-Releases ⚠️ -1 no releases found Branch-Protection 🟢 6 branch protection is not maximal on development and all release branches SAST 🟢 9 SAST tool detected but not run on all commits

Scanned Files

• .github/workflows/dependency-review.yml