[clang] [libclang] Allow using PrintingPolicy with types (PR #122386)

[Jannick Kremer via cfe-commits]

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

Thanks for the PR! Please also add a corresponding release note for `Type.pretty_printed` in the Python bindings section. Otherwise, LGTM!

https://github.com/llvm/llvm-project/pull/122386