mypy

gh-142554: avoid `divmod` crashes due to bad `_pylong.int_divmod` (#1… #18501

Job	Run time
Run mypy on Tools/cases_generator	19s
Run mypy on Tools/build	19s
Run mypy on Lib/test/libregrtest	22s
Run mypy on Tools/peg_generator	23s
Run mypy on Lib/tomllib	19s
Run mypy on Tools/jit	16s
Run mypy on Tools/clinic	18s
Run mypy on Lib/_pyrepl	20s
	2m 36s

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