[clang-tools-extra] [clang-tidy] fix `bugprone-narrowing-conversions` false positive for conditional expression (PR #139474)

[Baranov Victor via cfe-commits]

vbvictor wrote:

Please, investigate this issue and when re-applying the reverted patch, commit message should be updated to indicate the problem that was addressed and how it was addressed.

https://llvm.org/docs/DeveloperPolicy.html#patch-reversion-policy

https://github.com/llvm/llvm-project/pull/139474