[clang-tools-extra] [clang-tidy] Add modernize-use-to-underlying check (PR #210459)

[Baranov Victor via cfe-commits]

https://github.com/vbvictor commented:

Overall LG, please tell your AI to drop _all_ overly verbose comments that don't add any more value.

https://github.com/llvm/llvm-project/pull/210459