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

3 jobs for branch/default in 2 minutes and 44 seconds (queued for 8 minutes and 3 seconds)
Status Job ID Name Coverage
  Lint
passed check-manifest #382543

00:00:28

passed flake8 #382542

00:00:34

 
  Tests
passed py3 #382544

00:01:41