fixed echo code syntax

.gitlab-ci.yml

@@ -145,9 +145,9 @@ production-deploy:
     - export prod_instance_id=$(openstack floating ip show $prod_floating_ip -c port_details -f value | awk -F', ' '{print $2}' | awk -F"'" '{print $2}')
     - export prod_volume=$(openstack server show $prod_instance_id -c volumes_attached -f value | awk -F"'" '{print $4}')
     - export prod_queue_volume=$(openstack server show $prod_instance_id -c volumes_attached -f value | awk -F"'" '{print $4}' | awk 'NR==2')
-    - echo "prod_volume: $prod_volume"
-    - echo "prod_instance_id: $prod_instance_id"
-    - echo "prod_queue_volume: $prod_queue_volume"
+    - echo "prod_volume": $prod_volume
+    - echo "prod_instance_id": $prod_instance_id
+    - echo "prod_queue_volume": $prod_queue_volume
     - |
       eval $(ssh-agent -s)
       chmod 400 "${SSH_PRIV_KEY}"