feat(setup.py): increase cubicweb max version to 3.33.x

3 jobs for !20 with topic/default/set_cubes_cw_max_version in 5 minutes and 9 seconds (queued for 5 minutes and 7 seconds)
latest detached
Status Name Job ID Coverage
  Lint
passed flake8 #382841

00:00:31

failed flake8 #382744

00:03:52

 
  Tests
passed py3 #382745

00:04:37