mypy

gh-150114: Log the memory usage in regrtest on FreeBSD (#150280) #21551

Job	Run time
Run mypy on Tools/build	19s
Run mypy on Tools/check-c-api-docs	18s
Run mypy on Tools/peg_generator	11s
Run mypy on Lib/tomllib	20s
Run mypy on Tools/cases_generator	22s
Run mypy on Lib/_pyrepl	20s
Run mypy on Tools/clinic	18s
Run mypy on Lib/test/libregrtest	29s
Run mypy on Tools/jit	20s
	2m 57s

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