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

4 jobs for !20 with topic/default/set_cubes_cw_max_version in 8 minutes and 3 seconds (queued for 41 seconds)
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Status Name Job ID Coverage
  Lint
passed check-manifest #382094

00:03:02

passed flake8 #382093

00:00:43

 
  Tests
passed py27 #382095

00:01:22

passed py3 #382096

00:03:29