mypy

gh-141707: Skip TarInfo DIRTYPE normalization during GNU long name ha… #19890

Job	Run time
Run mypy on Lib/test/libregrtest	18s
Run mypy on Tools/build	24s
Run mypy on Tools/check-c-api-docs	20s
Run mypy on Tools/jit	24s
Run mypy on Lib/tomllib	19s
Run mypy on Tools/clinic	14s
Run mypy on Tools/peg_generator	15s
Run mypy on Tools/cases_generator	18s
Run mypy on Lib/_pyrepl	18s
	2m 50s

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