[clang-tools-extra] [clang-tidy] Fix false positives with deducing this in `readability-convert-member-functions-to-static` check (PR #141391)

[Baranov Victor via cfe-commits]

vbvictor wrote:

When merging, your new public email will be used, now it says
"This commit will be authored by flbven at protonmail.com." 

https://github.com/llvm/llvm-project/pull/141391