[llvm] DeveloperPolicy: Update commit access requirements (PR #127006)

[Tom Stellard via llvm-commits]

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@@ -539,11 +539,21 @@ What are the expectations around a revert?
 Obtaining Commit Access
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-We grant commit access to contributors that can provide a valid justification.
-If you would like commit access, please use this `link <https://github.com/llvm/llvm-project/issues/new?title=Request%20Commit%20Access%20For%20%3Cuser%3E&body=%23%23%23%20Why%20Are%20you%20requesting%20commit%20access%20?>`_ to file
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tstellar wrote:

@ldionne I've submitted this as a follow up change here: https://github.com/llvm/llvm-project/pull/128244

https://github.com/llvm/llvm-project/pull/127006