Prepare release 0.9.0

[kklein]

Checklist

• [ ] Added a CHANGELOG.rst entry

[codecov[bot]]

Codecov Report

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

Project coverage is 94.43%. Comparing base (1c4f019) to head (3c76626). Report is 12 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #76 +/- ## ======================================= Coverage 94.43% 94.43% ======================================= Files 15 15 Lines 1779 1779 ======================================= Hits 1680 1680 Misses 99 99 ```

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