feat(setup.py): increase cubicweb max version to 3.34.x

3 jobs for !28 with topic/default/set_cubes_cw_max_version in 5 minutes and 43 seconds (queued for 2 minutes and 20 seconds)
latest detached
Status Name Job ID Coverage
  Lint
passed check-manifest #459872
lint check-manifest

00:01:11

passed flake8 #459871
lint flake8

00:01:49

 
  Tests
passed py3 #459873
tests py3

00:03:54