Add missing drone dep

.drone.yml

@@ -74,6 +74,7 @@ steps:
       - cd astro
       - mv /base/node_modules .
       - yarn build
+
   - name: copy built content to stack
     image: git.coopcloud.tech/coop-cloud/docker-cp-deploy:latest
     settings:
@@ -85,3 +86,5 @@ steps:
       dest: /usr/share/nginx/html/
       deploy_key:
         from_secret: drone_ssh_swarm-demo.autonomic.zone
+    depends_on:
+      - build astro content