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

3 jobs for branch/default in 2 minutes and 31 seconds (queued for 32 seconds)
Status Job ID Name Coverage
  Lint
passed check-manifest #382807

00:00:24

passed flake8 #382806

00:00:33

 
  Tests
passed py3 #382808

00:01:33