mypy

gh-150285: Fix overflow in too long lines for class data in pydoc (GH… #21859

Job	Run time
Run mypy on Tools/build	18s
Run mypy on Tools/cases_generator	21s
Run mypy on Lib/_pyrepl	19s
Run mypy on Tools/clinic	20s
Run mypy on Tools/jit	20s
Run mypy on Lib/test/libregrtest	23s
Run mypy on Tools/peg_generator	21s
Run mypy on Lib/tomllib	19s
Run mypy on Tools/check-c-api-docs	22s
	3m 3s

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