mypy

gh-134584: Eliminate redundant refcounting in TO_BOOL_INT, TO_BOOL_LI… #19057

Job	Run time
Run mypy on Tools/check-c-api-docs	18s
Run mypy on Lib/_pyrepl	21s
Run mypy on Lib/test/libregrtest	19s
Run mypy on Tools/build	17s
Run mypy on Tools/jit	18s
Run mypy on Tools/cases_generator	17s
Run mypy on Lib/tomllib	15s
Run mypy on Tools/clinic	20s
Run mypy on Tools/peg_generator	17s
	2m 42s

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