Clean E2E resources across run attempts

[alfonso-noriega]

WHY are these changes introduced?

No linked issue.

Current PR E2E cleanup only searches for resources with the exact GITHUB_RUN_ID + GITHUB_RUN_ATTEMPT segment. If an earlier attempt creates E2E apps or dev stores and is cancelled or fails before cleanup completes, a later rerun searches for a different attempt suffix and misses those leftovers.

WHAT is this pull request doing?

Updates the PR workflow cleanup pattern to use only the run id segment (r${RUN_TOKEN}) for both app and store cleanup. E2E resource names still include the attempt suffix, but cleanup now covers all attempts from the same GitHub run.

How to test your changes?

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

Expected behavior in CI: cleanup for a rerun of the same workflow run can delete resources created by prior attempts because their names share the same r<run-id> prefix.

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]

• Clean E2E resources across run attempts #8121 👈 (View in Graphite)
• main

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