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

7 jobs for !26 with topic/default/set_cubes_cw_max_version in 3 minutes and 43 seconds (queued for 3 seconds)
latest detached
Status Name Job ID Coverage
  Lint
passed check-manifest #425307

00:01:29

passed flake8 #424813

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failed check-manifest #424657

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failed check-manifest #424812

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failed flake8 #424656

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  Tests
passed py27 #424658

00:01:44

passed py3 #424659

00:01:36