Updated to owlready2==0.44

[francescalb]

Description

Upgrades of owlready has been halted for a while due to breaking changes.
This is due to a change introduced in owlready2==0.45 (adding python names to classes in the ontology),
and the automatic update to supporting owlready2==0.44 should not have been stopped.

Type of change

• Bug fix.
• New feature.
• Documentation update.
• Test update.

Checklist

This checklist can be used as a help for the reviewer.

• Is the code easy to read and understand?
• Are comments for humans to read, not computers to disregard?
• Does a new feature has an accompanying new test (in the CI or unit testing schemes)?
• Has the documentation been updated as necessary?
• Does this close the issue?
• Is the change limited to the issue?
• Are errors handled for all outcomes?
• Does the new feature provide new restrictions on dependencies, and if so is this documented?

Comments

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 72.54%. Comparing base (d3c3e7f) to head (f4351d1).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #780   +/-   ##
=======================================
  Coverage   72.54%   72.54%           
=======================================
  Files          18       18           
  Lines        3701     3701           
=======================================
  Hits         2685     2685           
  Misses       1016     1016           

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