openSUSE-release-dvd from openSUSE:Leap:15.3:Update:Respin project
Select Your Operating System
Add repository and install manually
For standard run the following as root:
zypper addrepo https://download.opensuse.org/repositories/openSUSE:Leap:15.3:Update:Respin/standard/openSUSE:Leap:15.3:Update:Respin.repo zypper refresh zypper install openSUSE-release-dvd