Release v3.8.0

[glatterf42]

Preparing the 3.8.0 release.

• Read the diff and note that the CI checks all pass.
• Run a specific code snippet or command and check the output.
• Build the documentation and look at a certain page.
• Ensure that changes/additions are self-documenting, i.e. that another developer (someone like the reviewer) will be able to understand what the code does in the future.

PR checklist

• [x] Continuous integration checks all ✅

• ~[ ] Add or expand tests; coverage checks both ✅~
• [x] Add, expand, or update documentation.
• [x] Update release notes.

[codecov[bot]]

Codecov Report

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

Comparison is base (6a4c4a1) 95.2% compared to head (45240a6) 95.2%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #777 +/- ## ===================================== Coverage 95.2% 95.2% ===================================== Files 46 46 Lines 4335 4335 ===================================== Hits 4130 4130 Misses 205 205 ```