Remove your additional KDE repos and use the normal zypper dup to upgrade a Tumbleweed system.
Additionally , it is a simple repo missconfiguration. You need to add the auto refresh flag to the additional repos or do a simply zypper ref prior upgrading. You can do this via YaST → Software Repositories
This can be seen as you try to install xwaylandvideobridge-0.4.0+git12-7.1.x86_64.rpm but the mirrors already have xwaylandvideobridge-0.4.0+git12-13.1.x86_64.rpm