[llvm] Replace distutils.version with looseversion since the former was deprecated in python 3.10 and removed in 3.12. (PR #99549)

[via llvm-commits]

dyung wrote:

> Change LGTM, but I'm not sure whether LLVM has policies around introducing new developer dependencies like this package. Do you know?

I'm not sure to be honest. Any ideas who to ask?

https://github.com/llvm/llvm-project/pull/99549