mypy

gh-138122: Improve bytecode panel (#142910) #18646

Job	Run time
Run mypy on Tools/build	5m 31s
Run mypy on Tools/check-c-api-docs	19s
Run mypy on Lib/tomllib	17s
Run mypy on Tools/cases_generator	25s
Run mypy on Lib/_pyrepl	20s
Run mypy on Lib/test/libregrtest	21s
Run mypy on Tools/jit	19s
Run mypy on Tools/peg_generator	17s
Run mypy on Tools/clinic	20s
	8m 9s

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