The important metric is project coverage

[DimitriPapadopoulos]

Make patch coverage informational, so that fixing a typo in a line that raises an exception (typically not covered by a test) passes CI.

Fixes #3347.

TODO:

• Add unit tests and/or doctests in docstrings
• Add docstrings and API docs for any new/modified user-facing classes and functions
• New/modified features documented in docs/user-guide/*.rst
• Changes documented as a new file in changes/
• GitHub Actions have all passed
• Test coverage is 100% (Codecov passes)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.54%. Comparing base (1264a4d) to head (ee7e859).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3351      +/-   ##
==========================================
+ Coverage   94.51%   94.54%   +0.03%     
==========================================
  Files          78       78              
  Lines        9423     9423              
==========================================
+ Hits         8906     8909       +3     
+ Misses        517      514       -3     

see 1 file with indirect coverage changes

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