mypy

gh-134584: Eliminate redundant refcounting from `_COMPARE_OP_X` (GH-1… #18758

Job	Run time
Run mypy on Lib/test/libregrtest	23s
Run mypy on Tools/check-c-api-docs	17s
Run mypy on Tools/cases_generator	20s
Run mypy on Lib/_pyrepl	16s
Run mypy on Lib/tomllib	17s
Run mypy on Tools/clinic	19s
Run mypy on Tools/peg_generator	15s
Run mypy on Tools/jit	19s
Run mypy on Tools/build	22s
	2m 48s

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