fix: do not run aur update if workflows failed

.github/workflows/arch.yml

@@ -25,4 +25,5 @@ jobs:
           ssh_private_key: ${{ secrets.AUR_SSH_PRIVATE_KEY }}
           commit_message: Update AUR package
           force_push: 'true'
-          test: true
+          test: true
+          test_flags: --clean --cleanbuild