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

[Andrzej Warzyński via llvm-commits]

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banach-space wrote:

Updated, see this [commit](https://github.com/llvm/llvm-project/pull/194307/changes/b9e495d7f55e821378f9d4f5a55239a73abaf22f).

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