mypy

gh-151910: Add tkinter.ttk.Treeview methods for the Tk 9.1 enhanced t… #22014

Job	Run time
Run mypy on Lib/tomllib	18s
Run mypy on Tools/check-c-api-docs	21s
Run mypy on Lib/_pyrepl	19s
Run mypy on Lib/test/libregrtest	21s
Run mypy on Tools/jit	19s
Run mypy on Tools/clinic	18s
Run mypy on Tools/cases_generator	18s
Run mypy on Tools/peg_generator	22s
Run mypy on Tools/build	18s
	2m 54s

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