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

2 jobs for !18 with topic/default/set_cubes_cw_max_version in 31 seconds (queued for 6 seconds)
latest detached
Status Name Job ID Coverage
  Lint
passed check-manifest #462142
lint check-manifest

00:00:24

passed flake8 #462141
lint flake8

00:00:31