[llvm] [GitHub][workflows] Ask reviewers to merge new contributor's PRs (PR #80659)

[David Spickett via llvm-commits]

DavidSpickett wrote:

I've done this as a separate PR as it's quite different - https://github.com/llvm/llvm-project/pull/81142

https://github.com/llvm/llvm-project/pull/80659