For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/devel:Factory:git-workflow:staging:mcepl:git-deps:1/openSUSE_Tumbleweed/devel:Factory:git-workflow:staging:mcepl:git-deps:1.repo
zypper refresh
zypper install git-deps
For openSUSE Factory zSystems run the following as root:
zypper addrepo https://download.opensuse.org/repositories/devel:Factory:git-workflow:staging:mcepl:git-deps:1/openSUSE_Factory_zSystems/devel:Factory:git-workflow:staging:mcepl:git-deps:1.repo
zypper refresh
zypper install git-deps