fix(ci): add SSH test step for debugging

Author: zainfathoni

.github/workflows/deploy.yml

@@ -63,6 +63,9 @@ jobs:
       - name: Add VPS to known hosts
         run: ssh-keyscan -t rsa,ecdsa,ed25519 103.235.75.227 >> ~/.ssh/known_hosts
 
+      - name: Test SSH connection
+        run: ssh -o StrictHostKeyChecking=no root@103.235.75.227 "echo SSH connection successful"
+
       - name: Create Kamal secrets file
         run: |
           mkdir -p .kamal