mypy

gh-141510: Update PyDict C API doc for frozendict (#145533) #19909

Job	Run time
Run mypy on Tools/check-c-api-docs	14s
Run mypy on Tools/cases_generator	17s
Run mypy on Tools/jit	22s
Run mypy on Tools/build	18s
Run mypy on Lib/_pyrepl	19s
Run mypy on Lib/tomllib	18s
Run mypy on Tools/peg_generator	20s
Run mypy on Lib/test/libregrtest	21s
Run mypy on Tools/clinic	23s
	2m 52s

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