Update .gitlab-ci.yml file

.gitlab-ci.yml

@@ -36,6 +36,7 @@ run:
   environment: production
   script:
     - uvicorn api:app --port 80 &
+    - sleep 10
     - curl http://127.0.0.1/
   rules:
     - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH