mypy

gh-153062: Fix a crash iterating itertools.tee on the free-threaded b… #22430

Job	Run time
Run mypy on Tools/cases_generator	28s
Run mypy on Lib/tomllib	29s
Run mypy on Tools/jit	30s
Run mypy on Tools/clinic	31s
Run mypy on Lib/test/libregrtest	33s
Run mypy on Tools/build	32s
Run mypy on Tools/peg_generator	29s
Run mypy on Tools/check-c-api-docs	37s
Run mypy on Lib/_pyrepl	32s
	4m 41s

Provide feedback