For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:theMarix:Monitoring/15.6/home:theMarix:Monitoring.repo
zypper refresh
zypper install python3-zypper-patch-status-collector
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:theMarix:Monitoring/15.5/home:theMarix:Monitoring.repo
zypper refresh
zypper install python3-zypper-patch-status-collector
For 15.4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:theMarix:Monitoring/15.4/home:theMarix:Monitoring.repo
zypper refresh
zypper install python3-zypper-patch-status-collector