[clang] [clang-bindings] Add strict typing to clang Python bindings (#76664) (PR #78114)

[Jannick Kremer via cfe-commits]

DeinAlptraum wrote:

@AaronBallman could you review this or recommend reviewers? I didn't see any category in `clang/CodeOwners.rst` that seems to cover the bindings.

https://github.com/llvm/llvm-project/pull/78114