[llvm] workflows: Add a job for auditing release assets (PR #92829)

[Tobias Hieta via llvm-commits]

tru wrote:

While this is a pragmatic change to allow anyone that have uploaded before, I am pretty sure what we have reached a consensus for is that only the release managers (and hans) would be allowed to upload. If we want to expand that to anyone that have been a release tester for a while I think we need to go back to the RFC thread and reach a consensus for that as well, since there was quite a bit of discussion about the specifics here.

I would suggest we make the list the RM's and Hans to start with.

https://github.com/llvm/llvm-project/pull/92829