[yoga][horizon] Broken Horizon plugins UT: murano-dashboard, magnum-ui, heat-dashboard

Hi, Building Horizon plugins for yoga after upgrading to Horizon 22.1.0 lead me to broken unit tests. I haven't filed separate bugs yet, as I'd like to have the opinion of upstream about what's going on first. I've pushed the build logs over here: http://shade.infomaniak.ch/yoga-dashboard-plugins-build-logs/ So, what's going on? :) Cheers, Thomas Goirand (zigo) P.S: These are the last remaining failed to build issues I have for Yoga, everything else has been uploaded already.