mypy

gh-145036: Fix data race for list capacity in free-threading (#145365) #19870

Job	Run time
Run mypy on Tools/jit	27s
Run mypy on Lib/test/libregrtest	25s
Run mypy on Tools/build	19s
Run mypy on Tools/clinic	18s
Run mypy on Lib/_pyrepl	18s
Run mypy on Tools/cases_generator	18s
Run mypy on Lib/tomllib	26s
Run mypy on Tools/check-c-api-docs	19s
Run mypy on Tools/peg_generator	16s
	3m 6s

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