mypy

gh-151278: Fix test_faulthandler on UBSan (#151279) #21825

Job	Run time
Run mypy on Tools/jit	23s
Run mypy on Tools/check-c-api-docs	17s
Run mypy on Tools/clinic	18s
Run mypy on Tools/build	17s
Run mypy on Lib/tomllib	17s
Run mypy on Lib/test/libregrtest	19s
Run mypy on Tools/peg_generator	17s
Run mypy on Tools/cases_generator	18s
Run mypy on Lib/_pyrepl	22s
	2m 48s

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