[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:

Could you please rebase on fresh main, and I will land the changes.

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