feat(setup.py): increase cubicweb max version to 3.31.x

5 jobs for !39 with topic/default/set_cubes_cw_max_version in 2 minutes and 40 seconds (queued for 2 seconds)
latest detached
Status Name Job ID Coverage
  Lint
passed check-manifest #384962

00:00:28

passed flake8 #385114

00:00:50

failed flake8 #384961

00:00:35

 
  Tests
failed py27 #384963

00:01:21

failed py3 #384964

00:00:46

 
Name Stage Failure
failed
py3 Tests
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Cleaning up file based variables
ERROR: Job failed: command terminated with exit code 1
failed
py27 Tests
-> creating tables  
-> inserting default user and default groups.
-> storing the schema in the database
-> database for instance data initialized.
ERROR: InvocationError for command /builds/cubicweb/cubes/jsonschema/.tox/py27/bin/python -m coverage run -m unittest discover -s test -c (exited with code 1)
___________________________________ summary ____________________________________
ERROR: py27: commands failed
Cleaning up file based variables
ERROR: Job failed: command terminated with exit code 1