remmina from X11:RemoteDesktop project

For openSUSE Tumbleweed run the following as root:

zypper addrepo https://download.opensuse.org/repositories/X11:RemoteDesktop/openSUSE_Tumbleweed/X11:RemoteDesktop.repo
zypper refresh
zypper install remmina

For 15.6 run the following as root:

zypper addrepo https://download.opensuse.org/repositories/X11:RemoteDesktop/15.6/X11:RemoteDesktop.repo
zypper refresh
zypper install remmina

For 15.5 run the following as root:

zypper addrepo https://download.opensuse.org/repositories/X11:RemoteDesktop/15.5/X11:RemoteDesktop.repo
zypper refresh
zypper install remmina

For SLE 15 SP3 run the following as root:

zypper addrepo https://download.opensuse.org/repositories/X11:RemoteDesktop/SLE_15_SP3/X11:RemoteDesktop.repo
zypper refresh
zypper install remmina

For SLE 15 SP2 run the following as root:

zypper addrepo https://download.opensuse.org/repositories/X11:RemoteDesktop/SLE_15_SP2/X11:RemoteDesktop.repo
zypper refresh
zypper install remmina