chore(pkg): use rdflib >= 0.6.1 to keep compatibility with setuptools 58

branch : 3.31
7 jobs for branch/3.31 in 11 minutes and 38 seconds (queued for 34 seconds)
Name Stage Failure
build_doc Lint
AttributeError: 'iclassmethod' object has no attribute '__func__'
The full traceback has been saved in /tmp/sphinx-err-7o799dul.log, if you want to report the issue to the developers.
Please also report this if it was a user error, so that a better error message can be provided next time.
A bug report can be filed in the tracker at <>. Thanks!
ERROR: InvocationError for command /builds/cubicweb/cubicweb/.tox/doc/bin/python -m sphinx -b html -d /builds/cubicweb/cubicweb/.tox/doc/tmp/doctrees . /builds/cubicweb/cubicweb/.tox/doc/tmp/html (exited with code 2)
___________________________________ summary ____________________________________
ERROR: doc: commands failed
Cleaning up file based variables
ERROR: Job failed: command terminated with exit code 1
py3-web Tests There has been a runner system failure, please try again
Processing triggers for mime-support (3.62) ...
Processing triggers for libgdk-pixbuf2.0-0:amd64 (2.38.1+dfsg-1) ...
$ tox -e py3-web
GLOB sdist-make: /builds/cubicweb/cubicweb/
py3-web create: /builds/cubicweb/cubicweb/.tox/py3-web
py3-web installdeps: -r/builds/cubicweb/cubicweb/requirements/dev.txt, -r/builds/cubicweb/cubicweb/requirements/test-web.txt
Uploading artifacts for successful job
Cleaning up file based variables
ERROR: Job failed (system failure): Timeout occured