Fix CI: use apt-get with update to install rsync and openssh-client

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.forgejo/workflows/deploy.yml

@@ -18,7 +18,7 @@ jobs:
 
       - name: Setup SSH
         run: |
-          apk add --no-cache rsync openssh || apt-get install -y rsync openssh-client
+          apt-get update -qq && apt-get install -y -qq rsync openssh-client
           mkdir -p ~/.ssh
           echo "${{ secrets.SSH_PRIVATE_KEY }}" > ~/.ssh/id_ed25519
           chmod 600 ~/.ssh/id_ed25519