Revert "Add dependency groups to pyproject.toml file"

[Pierre-Sassoulas]

Reverts #10332

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.90%. Comparing base (13743cd) to head (7c9168e).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #10342   +/-   ##
=======================================
  Coverage   95.90%   95.90%           
=======================================
  Files         176      176           
  Lines       19108    19108           
=======================================
  Hits        18325    18325           
  Misses        783      783           

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