mypy

gh-144321: Fix named tuple bug when input is a non-sequence iterable … #19481

Job	Run time
Run mypy on Lib/test/libregrtest	19s
Run mypy on Tools/clinic	25s
Run mypy on Lib/_pyrepl	19s
Run mypy on Tools/cases_generator	17s
Run mypy on Tools/build	25s
Run mypy on Tools/jit	21s
Run mypy on Lib/tomllib	19s
Run mypy on Tools/check-c-api-docs	22s
Run mypy on Tools/peg_generator	18s
	3m 5s

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