Update dependency mypy to v1.8.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
mypy (source, changelog)	==1.7.1 -> ==1.8.0

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Release Notes

python/mypy (mypy)

### [`v1.8.0`](https://togithub.com/python/mypy/compare/v1.7.1...v1.8.0) [Compare Source](https://togithub.com/python/mypy/compare/v1.7.1...v1.8.0)

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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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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (3d71439) 100.00% compared to head (0a1a24a) 100.00%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #213 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 8 8 Lines 401 401 Branches 76 76 ========================================= Hits 401 401 ```

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