python-trove-classifiers from home:alois:subliminal:156:helpers project

需要 15.6 Update ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/home:alois:subliminal:156:helpers/15.6_Update/home:alois:subliminal:156:helpers.repo
zypper refresh
zypper install python-trove-classifiers