RFC: Commit Access Criteria

I tried to do this by using the review approved event, long story short, that event has read only permissions so it can’t change anything (RFC / FYI: Pull Request Greetings For New Contributors - #18 by DavidSpickett, Revert "[GitHub][workflows] Ask reviewers to merge PRs when author cannot" by DavidSpickett · Pull Request #81722 · llvm/llvm-project · GitHub).

Adding a label or comment when the PR is opened is an alternative. We already do this for other purposes, and some of the code in that reverted PR could be re-used.

I lean toward a label, since it’s always visible in the UI and you could search label:reviewer-merge and state:approved to find anything pending.