Fixing docker-compose file for staging

docker-compose.yml

@@ -13,7 +13,9 @@ services:
   grady:
     image: docker.gitlab.gwdg.de/j.michal/grady:master
     command: >
-        sh -c "./manage.py maketestdata &&
+        sh -c "sleep 2 &&
+               ./manage.py migrate --noinput &&
+               ./manage.py maketestdata &&
                ./deploy.sh"
     depends_on:
       - postgres