mypy

gh-131565: Implement ctypes.util.dllist() in the _ctypes extension (G… #22830

Job	Run time
Run mypy on Lib/tomllib	21s
Run mypy on Tools/cases_generator	20s
Run mypy on Tools/jit	14s
Run mypy on Tools/check-c-api-docs	17s
Run mypy on Tools/build	19s
Run mypy on Tools/peg_generator	22s
Run mypy on Tools/clinic	22s
Run mypy on Lib/_pyrepl	20s
Run mypy on Lib/test/libregrtest	23s
	2m 58s

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