[clang-tools-extra] [clang-tidy] Use upper case letters for bool conversion suffix (PR #104882)

[Carlos Galvez via cfe-commits]

https://github.com/carlosgalvezp approved this pull request.

LGTM, maybe give a couple more days for other reviewers in case they have more comments.

https://github.com/llvm/llvm-project/pull/104882