style: stricter ruff linters

[lengau]

• [x] Have you followed the guidelines for contributing?
• [x] Have you signed the CLA?
• [x] Have you successfully run tox?

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Please raise any opinions here. If we don't have unanimity on rules we shouldn't include them.

[codecov[bot]]

Codecov Report

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

Comparison is base (073e450) 100.00% compared to head (5c81ffa) 100.00%.

:exclamation: Current head 5c81ffa differs from pull request most recent head a081a27. Consider uploading reports for the commit a081a27 to get more accurate results

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #139 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 1 1 Lines 10 10 Branches 2 2 ========================================= Hits 10 10 ```

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