Compatibility with dict-expecting `__deepcopy__`

[Bobronium]

Tracking issue for libraries that type-check the memo argument in __deepcopy__.

See Memo handling for explanation and workarounds.

Library	Impl	Dict usage	Fix	Status
pydantic-core	Rust/PyO3	signature only (1, 2)	PyDict -> PyAny	🐢 works via fallback
fastuuid	Rust/PyO3	signature only (1)	PyDict -> PyAny	🐢 works via fallback
scyllapy	Rust/PyO3	signature only (1, 2, 3, 4)	PyDict -> PyAny	🐢 works via fallback
tantivy-py	Rust/PyO3	signature only (1)	PyDict -> PyAny	🐢 works via fallback
blender-mathutils	C	runtime checked & discarded (1)	remove &PyDict_Type constraint	🐢 works via fallback

If you encounter the warning with a library not listed, comment with the warning output.