mypy

gh-138122: Make Tachyon flamegraph and heatmap output more similar (#… #18448

Job	Run time
Run mypy on Tools/peg_generator	21s
Run mypy on Lib/_pyrepl	22s
Run mypy on Tools/cases_generator	18s
Run mypy on Lib/tomllib	21s
Run mypy on Lib/test/libregrtest	37s
Run mypy on Tools/jit	16s
Run mypy on Tools/build	16s
Run mypy on Tools/clinic	26s
	2m 57s

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