mypy

gh-153511: Removes Tools/msi, Tools/nuget, and legacy py.exe launcher sources #22446

Job	Run time
Run mypy on Lib/test/libregrtest	30s
Run mypy on Lib/tomllib	29s
Run mypy on Tools/clinic	33s
Run mypy on Tools/jit	35s
Run mypy on Tools/check-c-api-docs	28s
Run mypy on Tools/cases_generator	33s
Run mypy on Lib/_pyrepl	30s
Run mypy on Tools/peg_generator	29s
Run mypy on Tools/build	33s
	4m 40s

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