[clang-tools-extra] [clang-tidy][readability-container-contains] Extend to any class with contains (PR #107521)

[Nicolas van Kempen via cfe-commits]

nicovank wrote:

Update, now getting the same hits on llvm-project with/without type checking (553/553), a good indication no true positives are missed.

https://github.com/llvm/llvm-project/pull/107521