[clang] [libclang/python] Expose `clang_getCursorLanguage` via `Cursor.language` (PR #152897)

[Jimmy Z via cfe-commits]

jimmy-zx wrote:

Thanks for the feedback! I’ve updated the enum in `test_enums.py`. As I don't have write permission on this repo, could you push the merge button when you have a chance?

https://github.com/llvm/llvm-project/pull/152897