* [AI] Make merge-freeze-unfreeze workflow work on fork PRs via pull_request_target
Made-with: Cursor
* Add release notes for the "unfreeze" workflow functionality in fork PRs
* Add empty permissions block to unfreeze job in merge-freeze-unfreeze workflow
* [AI] Add GitHub Action to add PR to Merge Freeze unblocked list when unfreeze label is added
Made-with: Cursor
* Rename 7093.md to 7094.md
* Add concurrency control to unfreeze job in merge-freeze-unfreeze workflow
- Introduced concurrency settings to prevent overlapping executions of the unfreeze job based on labels.
- Updated error handling to abort the process if fetching the current merge freeze status fails, ensuring unblocked PRs are not overwritten.
* Refactor Merge Freeze workflow to simplify PR unblocking process
- Updated the workflow to directly post the PR to the unblocked list without fetching the current freeze status.
- Improved error handling by ensuring the access token is set before proceeding with the API call.
