[clang] [llvm] [libclang/python] Enable packaging libclang bindings (PR #125806)

[Ryan Mast via cfe-commits]

nightlark wrote:

@LecrisUT all of the situations listed work fine -- the top level bullet points are the "hypothetical issues" that someone trying to use it  have encountered, and the sub-bullet points are ways to check that the potential issue was addressed and is not an issue.

https://github.com/llvm/llvm-project/pull/125806