rubygem-locale from home:smarty12:rubygem project

需要 openSUSE Leap 15.6 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/home:smarty12:rubygem/openSUSE_Leap_15.6/home:smarty12:rubygem.repo
zypper refresh
zypper install rubygem-locale