mypy

gh-129876: Move misplaced IDLE news item (#141118) #17728

Job	Run time
Run mypy on Tools/build	15s
Run mypy on Lib/test/libregrtest	17s
Run mypy on Lib/tomllib	20s
Run mypy on Tools/jit	19s
Run mypy on Tools/cases_generator	17s
Run mypy on Tools/clinic	20s
Run mypy on Lib/_pyrepl	17s
Run mypy on Tools/peg_generator	18s
	2m 23s

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