textproc/py-docify: Add py-docify 1.2.1

docify is a script to add docstrings to Python type stubs using reflection.

Features:

• Uses LibCST to parse and modify the stub file
• Dynamically imports the actual module to get the runtime docstring
• Handles most sys.version and sys.platform conditional blocks, will only add docstrings to the correct branch
• Able to modify files in-place with -i or --in-place
• Won't overwrite existing docstrings
• With -b or --builtins-only, will only add docstrings for modules found in sys.builtin_module_names (stdlib modules written in C).
• With --if-needed, will only add docstrings if the object's (Python) source code is unavailable. Useful for language servers like basedpyright that are able to extract docstrings from source code.