[clang-tools-extra] [clang-tidy] Fix modernize-use-integer-sign-comparison comparison (PR #121506)

[via cfe-commits]

qt-tatiana wrote:

> Missing:
> 
> * Documentation entry to tell user about this behavior (single sentence)
> 
> To be considered:
> 
> * Configuration option to enable/disable this behavior

done

https://github.com/llvm/llvm-project/pull/121506