leverage recent CI updates for background steps

[arii]

https://docs.github.com/en/actions/reference/workflows-and-actions/workflow-syntax

[github-actions]

🤖 Issue Quality Review

❌ Violations

• Missing spec-driven sections: Problem Statement, Goal, Non-Goals, Proposed Approach, Alternatives Considered, Architectural Impact, Scope, UNDERSTAND THE ISSUE, DETERMINE APPROACH, SPECIFY SCOPE, DEFINITION OF DONE

⚠️ Warnings

• No acceptance criteria.

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Generated by td_cli validate-issue

[google-labs-jules]

Jules is on it. When finished, you will see another comment and be able to review a PR.

[google-labs-jules]

I apologize, but I encountered an unexpected error and wasn't able to complete the task.

[google-labs-jules]

Ready for a review! A PR has been created.