Run E2E cleanup phases independently

[alfonso-noriega]

WHY are these changes introduced?

No linked issue.

The PR E2E cleanup job has separate app and store cleanup phases, but a failure in auth priming or app cleanup can prevent later cleanup steps from running. That leaves stores behind even though the store cleanup script can independently uninstall apps from stores before deleting them.

WHAT is this pull request doing?

Makes cleanup phases more independent in the PR workflow:

• Allows cleanup auth priming to fail without stopping the job.
• Runs app cleanup with if: ${{ always() }} and continue-on-error: true.
• Runs store cleanup with if: ${{ always() }} and continue-on-error: true.

This keeps each cleanup phase best-effort so one failed phase does not block the next phase.

How to test your changes?

• gt diff --check
• Parsed .github/workflows/tests-pr.yml with Ruby YAML loader.

Expected behavior in CI: store cleanup still runs even when cleanup auth priming or app cleanup reports a failure.

Post-release steps

None.

Checklist

• I've considered possible cross-platform impacts (Mac, Linux, Windows)
• I've considered possible documentation changes
• I've considered analytics changes to measure impact
• The change is user-facing — I've identified the correct bump type (patch for bug fixes · minor for new features · major for breaking changes) and added a changeset with pnpm changeset add

This is CI-only workflow maintenance, so no changeset is needed.

[alfonso-noriega]

• Run E2E cleanup phases independently #8122 👈 (View in Graphite)
• main

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