mypy

gh-149609: Raise deprecation warnings for `abc.{abstractclassmethod,a… #21655

Job	Run time
Run mypy on Tools/check-c-api-docs	19s
Run mypy on Lib/_pyrepl	17s
Run mypy on Lib/tomllib	18s
Run mypy on Tools/clinic	17s
Run mypy on Lib/test/libregrtest	17s
Run mypy on Tools/peg_generator	18s
Run mypy on Tools/build	21s
Run mypy on Tools/cases_generator	17s
Run mypy on Tools/jit	21s
	2m 45s

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