[clang] [clang-format] NEVER allow && to be an unary operator. (PR #78852)

[Emilia Kond via cfe-commits]

rymiel wrote:

clang-format does not support that extension in the first place, there's an open issue for it. But I will try a few edge cases to see if it changes anything or if it was already broken

https://github.com/llvm/llvm-project/pull/78852