[clang-tools-extra] [clang-tidy] Add `bugprone-pointer-arithmetic-on-polymorphic-object` check (PR #91951)

[Piotr Zegar via cfe-commits]

https://github.com/PiotrZSL approved this pull request.

Some small issues with diagnostic left.
Except that, looks good enough.

https://github.com/llvm/llvm-project/pull/91951