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

4 jobs for !25 with topic/default/set_cubes_cw_max_version in 8 minutes and 35 seconds (queued for 1 second)
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Status Name Job ID Coverage
  Lint
passed check-manifest #384780

00:01:28

passed flake8 #384779

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  Tests
passed py27 #384781

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passed py3 #384782

00:06:55