mypy

gh-145681: do not deallocate list buffer in `_PyList_AsTupleAndClear`… #19907

Job	Run time
Run mypy on Tools/build	16s
Run mypy on Lib/test/libregrtest	18s
Run mypy on Tools/jit	20s
Run mypy on Lib/tomllib	17s
Run mypy on Tools/clinic	24s
Run mypy on Tools/cases_generator	21s
Run mypy on Lib/_pyrepl	19s
Run mypy on Tools/peg_generator	21s
Run mypy on Tools/check-c-api-docs	14s
	2m 50s

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