[test] Use cubicweb-file < 2.0.0 From version 2.0.0, cubicweb-file moved to new-style layout (Python package) but we still expect it to be an old-style cube in CubicWeb's tests (WebconfigTC in web/test/unittest_webconfig.py).

mock
psycopg2
ldap3 < 2
cubicweb-basket
cubicweb-card
cubicweb-comment
cubicweb-file
cubicweb-localperms
cubicweb-tag