Update .gitlab-ci.yml file

.gitlab-ci.yml

@@ -27,9 +27,8 @@ retrieve_data:
   image: 
     name: $CI_REGISTRY_IMAGE:latest
     entrypoint: [""]
-  except:
-    variables:
-      - $CI_PROJECT_URL == "https://gitlab.uzh.ch/retogerber/metrics-collect"
+  only:
+    schedule
   #only:
     #- schedules
     #- web