[llvm] [workflows] Add a new workflow for checking commit access qualifications (PR #93301)

[Aiden Grossman via llvm-commits]

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@@ -527,6 +527,21 @@ after they are committed, depending on the nature of the change).  You are
 encouraged to review other peoples' patches as well, but you aren't required
 to do so.
 
+Triage Role
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boomanaiden154 wrote:

It seems like this should be probably be reviewed in a separate patch/maybe accompanied by a post on Discourse given it's more of a project policy thing? At least the second sentence of the first paragraph.

The second paragraph can probably just be landed, but probably in a separate commit to keep things cleanish.

https://github.com/llvm/llvm-project/pull/93301