libburn4 from isv:Rancher:Elemental:15.6 project

需要 standard ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/isv:Rancher:Elemental:15.6/standard/isv:Rancher:Elemental:15.6.repo
zypper refresh
zypper install libburn4