Fix doc build in Pull Request

[valeriupredoi]

Description

Closes #issue_number

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Checklist

• This pull request has a descriptive title and labels
• This pull request has a minimal description (most was discussed in the issue, but a two-liner description is still desirable)
• Unit tests have been added (if codecov test fails)
• Any changed dependencies have been added or removed correctly (if need be)
• If you are working on the documentation, please ensure the current build passes
• All tests pass

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.19%. Comparing base (1d73ef0) to head (d72676d).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #363   +/-   ##
=======================================
  Coverage   93.19%   93.19%           
=======================================
  Files           7        7           
  Lines         691      691           
=======================================
  Hits          644      644           
  Misses         47       47           

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[valeriupredoi]

previous issues were only due to unavailable inventories

WARNING: failed to reach any of the inventories with the following issues:
intersphinx inventory 'https://docs.python.org/3/objects.inv' not fetchable due to <class 'requests.exceptions.HTTPError'>: 503 Server Error: Service Unavailable for url: https://docs.python.org/3/objects.inv
intersphinx inventory has moved: https://matplotlib.org/objects.inv -> https://matplotlib.org/stable/objects.inv

all sorted now, so fine to close this