[clang-tools-extra] [clang-tidy] Correcting fix suggestion in `readability-simplify-boolean-expr` (PR #178392)

[Björn Svensson via cfe-commits]

bjosv wrote:

> Since this check doesn't work for `C` standard less that 23, can we override `isLanguageVersionSupported` to only use `LangOpts.CPlusPlus || LangOpts.C23`

Ok, I added `isLanguageVersionSupported`


https://github.com/llvm/llvm-project/pull/178392