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

3 jobs for !28 with topic/default/set_cubes_cw_max_version in 1 minute and 39 seconds (queued for 8 minutes and 13 seconds)
latest detached
Status Name Job ID Coverage
  Lint
passed check-manifest #522238
lint check-manifest

00:01:13

passed flake8 #522237
lint flake8

00:00:27

 
  Tests
passed py3 #522239
tests py3

00:01:34