mypy

Notify Sviat of GHA changes through codeowners (#143945) #10082

Job	Run time
Run mypy on Lib/tomllib	17s
Run mypy on Lib/_pyrepl	18s
Run mypy on Lib/test/libregrtest	16s
Run mypy on Tools/check-c-api-docs	14s
Run mypy on Tools/build	20s
Run mypy on Tools/peg_generator	13s
Run mypy on Tools/clinic	20s
Run mypy on Tools/cases_generator	20s
Run mypy on Tools/jit	22s
	2m 40s

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