Update dependency mypy to v0.960

This MR contains the following updates:

Package	Update	Change
mypy (source, changelog)	minor	==0.782 -> ==0.960

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Release Notes

python/mypy

v0.960

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v0.950

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v0.942

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v0.941

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v0.940

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v0.931

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v0.930

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v0.921

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v0.920

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v0.910

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v0.902

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v0.901

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v0.900

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v0.812

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v0.800

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v0.790

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