Para openSUSE Leap 15.6 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/devel:openQA:GitHub:os-autoinst:openQA:PR-5941/openSUSE_Leap_15.6/devel:openQA:GitHub:os-autoinst:openQA:PR-5941.repo
zypper refresh
zypper install openQA
Para SLE 15 SP6 Backports execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/devel:openQA:GitHub:os-autoinst:openQA:PR-5941/SLE_15_SP6_Backports/devel:openQA:GitHub:os-autoinst:openQA:PR-5941.repo
zypper refresh
zypper install openQA