Add MyPY to lint GHA workflow (#54067)
Summary:
Also disable test_run_mypy from test_type_hints.py as it is running as part of GHA
Pull Request resolved: https://github.com/pytorch/pytorch/pull/54067
Reviewed By: ezyang
Differential Revision: D27091530
Pulled By: malfet
fbshipit-source-id: 9cfe397260aba34aeb055676855db383cd06f76d
