[llvm] Update GitHub PR Greeter (PR #194307)

[David Spickett via llvm-commits]

https://github.com/DavidSpickett approved this pull request.

I don't have any evidence based suggestions for changes, I think we just have to see what happens. And by we I mean you @banach-space because so far I don't have to deal with that much AI impact.

Fingers crossed it has a positive effect.

https://github.com/llvm/llvm-project/pull/194307