mypy

gh-70647: Better promote how to safely parse yearless dates in dateti… #18692

Job	Run time
Run mypy on Lib/_pyrepl	17s
Run mypy on Tools/cases_generator	16s
Run mypy on Lib/tomllib	15s
Run mypy on Lib/test/libregrtest	18s
Run mypy on Tools/peg_generator	19s
Run mypy on Tools/clinic	18s
Run mypy on Tools/build	16s
Run mypy on Tools/jit	18s
Run mypy on Tools/check-c-api-docs	17s
	2m 34s

Provide feedback