mypy

gh-151881: Add tkinter Menu.postcascade, Misc.tk_scaling and tk_inact… #22016

Job	Run time
Run mypy on Tools/clinic	18s
Run mypy on Lib/tomllib	21s
Run mypy on Tools/peg_generator	23s
Run mypy on Tools/jit	18s
Run mypy on Lib/test/libregrtest	19s
Run mypy on Tools/cases_generator	18s
Run mypy on Tools/build	21s
Run mypy on Lib/_pyrepl	20s
Run mypy on Tools/check-c-api-docs	19s
	2m 57s

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