Update dependency mypy to v0.991 - autoclosed

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
mypy (source, changelog)	==0.982 -> ==0.991

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Release Notes

python/mypy

### [`v0.991`](https://togithub.com/python/mypy/compare/v0.990...v0.991) [Compare Source](https://togithub.com/python/mypy/compare/v0.990...v0.991) ### [`v0.990`](https://togithub.com/python/mypy/compare/v0.982...v0.990) [Compare Source](https://togithub.com/python/mypy/compare/v0.982...v0.990)

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Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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• [ ] If you want to rebase/retry this PR, check this box

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