Merge `community_champion_auto_labeler` into `pr_labeler` (#57898)

Self-Review Checklist:

- [X] I've reviewed my own diff for quality, security, and reliability
- [n/a] Unsafe blocks (if any) have justifying comments
- [n/a] The content is consistent with the [UI/UX
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
- [n/a] Tests cover the new/changed behavior
- [n/a] Performance impact has been considered and is acceptable

Release Notes:

- N/A
5abe4bcbc6Joseph T. Lyons committed on 5/28/2026, 3:56:02 PM· committed by GitHubparentd139a87
3 files changedLine totals unavailable