Log Message:
py-typing-extensions: updated to 4.12.2

Release 4.12.2 (June 7, 2024)

- Fix regression in v4.12.0 where specialization of certain
  generics with an overridden `__eq__` method would raise errors.
  Patch by Jelle Zijlstra.
- Fix tests so they pass on 3.13.0b2