[test] Pin some test dependencies
We currently have CI failures because cubes used as test dependencies have been
updated to new-style cube layout. To avoid this, pin them to previous released.
Those dependencies should be removed but in the mean time this should be enough
(and backported in all active branches).
Document: cubicweb-doc
Title: CubicWeb Documentation
Author: Logilab
Abstract: Some base documentation for CubicWeb users and developpers
Section: Apps/Programming
Format: HTML
Index: /usr/share/doc/python-cubicweb-documentation/html/index.html
Files: /usr/share/doc/python-cubicweb-documentation/html/*