Release v3.8.0

[glatterf42]

PR for finalizing the release 3.8.0.

How to review

• 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

• Continuous integration checks all ✅
• [ ] Add or expand tests; coverage checks both ✅
• [ ] Add, expand, or update documentation.
• Update release notes.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (2539823) 98.9% compared to head (c2613a1) 98.9%.

Additional details and impacted files

@@          Coverage Diff          @@
##            main    #509   +/-   ##
=====================================
  Coverage   98.9%   98.9%           
=====================================
  Files         44      44           
  Lines       4794    4794           
=====================================
  Hits        4743    4743           
  Misses        51      51