Update integration test recommendation workflow

[Copilot]

Closes #

Updates the integration-test recommendation workflow so it only treats changes to packages/react and direct local packages that affect its generated runtime output as requiring github-ui integration tests. Other changes now receive the integration-tests: ignored label, and that label satisfies the github-ui status-check override workflow.

Changelog

New

• Added automatic integration-tests: ignored labeling for non-relevant changes.

Changed

• Scoped integration-test recommendations to packages/react, packages/postcss-preset-primer, and packages/rollup-plugin-import-css.
• Updated github-ui status-check overrides to accept integration-tests: ignored in addition to integration-tests: skipped manually.

Removed

• N/A

Rollout strategy

• Patch release
• Minor release
• Major release; if selected, include a written rollout or migration plan
• None; CI/workflow-only change, no package release needed.

Testing & Reviewing

• Ran npm install && npm run build && npm test && npm run type-check && npm run lint && npm run lint:css && npm run format:diff before changes.
• Ran npm run build && npm test && npm run type-check && npm run lint && npm run lint:css && npm run format:diff after changes.
• Ran secret scanning on changed workflow files.
• Ran parallel code review and CodeQL validation; no alerts or review comments remain.

Merge checklist

• Added/updated tests
• Added/updated documentation
• Added/updated previews (Storybook)
• Changes are SSR compatible
• Tested in Chrome
• Tested in Firefox
• Tested in Safari
• Tested in Edge
• (GitHub staff only) Integration tests pass at github/github-ui (Learn more about how to run integration tests)

[changeset-bot]

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Latest commit: c538efb

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