mypy

gh-149537: Remove kw parameters from python version of `reduce` (#149… #10536

Job	Run time
Run mypy on Tools/build	28s
Run mypy on Tools/peg_generator	25s
Run mypy on Lib/test/libregrtest	30s
Run mypy on Tools/clinic	34s
Run mypy on Lib/tomllib	26s
Run mypy on Tools/check-c-api-docs	28s
Run mypy on Tools/cases_generator	29s
Run mypy on Tools/jit	29s
Run mypy on Lib/_pyrepl	32s
	4m 21s

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