mypy

gh-149353: Preserve JIT shim object during PGO clean (#149387) #21164

Job	Run time
Run mypy on Tools/check-c-api-docs	21s
Run mypy on Tools/clinic	14s
Run mypy on Lib/tomllib	23s
Run mypy on Tools/peg_generator	25s
Run mypy on Tools/jit	17s
Run mypy on Tools/cases_generator	32s
Run mypy on Lib/_pyrepl	20s
Run mypy on Tools/build	28s
Run mypy on Lib/test/libregrtest	23s
	3m 23s

Provide feedback