GIT_SILENT Update Appstream for new release

(cherry picked from commit bc212ac0)
2 jobs for master in 29 minutes (queued for 90 minutes and 54 seconds)
Status Job ID Name Coverage
  Build
passed #60939
build_clazy_clang_tidy

00:14:14

passed #60938
linux kf5-qt5 qt5.12

00:14:46

61.0%