feat: implement issue #271 — Compliance: unpinned-actions-pr-review-mention.yml

[don-petry]

Closes #271

Implemented by dev-lead agent. Please review.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: acdd1bbc-8043-441d-82e3-ad6e754113a5

📥 Commits

Reviewing files that changed from the base of the PR and between d3b02ca and 4a93565.

📒 Files selected for processing (1)

• .github/workflows/pr-review-mention.yml

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch dev-lead/issue-271-20260521-1922

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[gemini-code-assist]

Code Review

This pull request adds a duplicate entry for ".dev-lead/" to the .gitignore file. The reviewer correctly identified that this entry is already present in the file and recommended its removal to avoid redundancy.

[Copilot]

Pull request overview

This PR addresses compliance issue #271 by pinning the pr-review-mention reusable workflow reference to an immutable commit SHA (action pinning), ensuring the workflow can’t drift unexpectedly via a moving tag.

Changes:

• Pin .github/workflows/pr-review-mention.yml reusable workflow uses: reference to a specific commit SHA.
• Add an additional .dev-lead/ ignore entry in .gitignore (currently duplicative).

Reviewed changes

Copilot reviewed 1 out of 2 changed files in this pull request and generated no comments.

File	Description
.gitignore	Adds an ignore entry (but introduces a duplicate .dev-lead/ line).
.github/workflows/pr-review-mention.yml	Pins the reusable workflow reference to a commit SHA for compliance with action-pinning policy.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud