rubygem-net-sftp from Virtualization:vagrant:Leap:15.3 project
Select Your Operating System
Add repository and install manually
For openSUSE Leap 15.3 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/Virtualization:vagrant:Leap:15.3/openSUSE_Leap_15.3/Virtualization:vagrant:Leap:15.3.repo zypper refresh zypper install rubygem-net-sftp