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

2 jobs for !21 with topic/default/set_cubes_cw_max_version in 3 minutes and 28 seconds (queued for 9 minutes and 30 seconds)
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Status Name Job ID Coverage
  Lint
passed flake8 #382503

00:00:32

 
  Tests
passed py3 #382504

00:02:56