Fix continuous integration

[bittremieux]

• Update GitHub Actions.
• Also remove some older Python versions during testing. Minimum supported version: 3.10.
• Replace black by Ruff for linting.

[codecov[bot]]

Codecov Report

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

Project coverage is 66.53%. Comparing base (40151e2) to head (03efb99).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #68 +/- ## ======================================= Coverage 66.53% 66.53% ======================================= Files 7 7 Lines 1052 1052 ======================================= Hits 700 700 Misses 352 352 ```

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