mypy

gh-148207: add additional keywords to `typing.TypeVarTuple` (#148212) #20822

Job	Run time
Run mypy on Tools/cases_generator	14s
Run mypy on Tools/check-c-api-docs	17s
Run mypy on Lib/tomllib	18s
Run mypy on Tools/build	20s
Run mypy on Lib/_pyrepl	17s
Run mypy on Tools/peg_generator	27s
Run mypy on Tools/clinic	16s
Run mypy on Tools/jit	17s
Run mypy on Lib/test/libregrtest	21s
	2m 47s

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