mypy

gh-142037: Improve error messages for printf-style formatting (GH-142… #10102

Job	Run time
Run mypy on Lib/_pyrepl	18s
Run mypy on Lib/tomllib	18s
Run mypy on Tools/jit	19s
Run mypy on Tools/cases_generator	21s
Run mypy on Tools/peg_generator	17s
Run mypy on Tools/check-c-api-docs	15s
Run mypy on Tools/clinic	18s
Run mypy on Lib/test/libregrtest	17s
Run mypy on Tools/build	20s
	2m 43s

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