mypy

gh-142332: Fix usage formatting for positional arguments in mutually … #18280

Job	Run time
Run mypy on Lib/test/libregrtest	22s
Run mypy on Lib/_pyrepl	21s
Run mypy on Tools/build	19s
Run mypy on Tools/cases_generator	17s
Run mypy on Tools/clinic	17s
Run mypy on Lib/tomllib	19s
Run mypy on Tools/jit	18s
Run mypy on Tools/peg_generator	18s
	2m 31s

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