mypy

gh-142903: add conda-forge license for pixi-packages (#143468) #19382

Job	Run time
Run mypy on Tools/peg_generator	24s
Run mypy on Lib/tomllib	19s
Run mypy on Tools/clinic	18s
Run mypy on Tools/build	21s
Run mypy on Lib/_pyrepl	20s
Run mypy on Lib/test/libregrtest	19s
Run mypy on Tools/check-c-api-docs	20s
Run mypy on Tools/jit	22s
Run mypy on Tools/cases_generator	19s
	3m 2s

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