mypy

gh-152132: Enhance Py_RunMain() and fix bugs (#153461) #22427

Job	Run time
Run mypy on Tools/check-c-api-docs	28s
Run mypy on Tools/cases_generator	30s
Run mypy on Tools/jit	34s
Run mypy on Tools/build	28s
Run mypy on Tools/peg_generator	32s
Run mypy on Lib/tomllib	29s
Run mypy on Tools/clinic	29s
Run mypy on Lib/test/libregrtest	32s
Run mypy on Lib/_pyrepl	33s
	4m 35s

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