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

[Jannick Kremer via cfe-commits]

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

Thank you for the PR!
LGTM, just one thing: please also add the new enum to the list of enums in `test_enums.py`.

@Endilll do you also want to take a look?

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