ci: add scheduled builds

backend/backend/.gitlab-ci.yml

@@ -1,18 +1,18 @@
 integration:
-  image: registry.gitlab.com/openstapps/projectmanagement/builder:v18
+  image: registry.gitlab.com/openstapps/openstapps/node-builder
   stage: test
   needs: ['build']
   variables:
     DOCKER_DRIVER: overlay2
     WAIT_FOR_SERVICES_TIMEOUT: 1
   services:
-    - name: registry.gitlab.com/openstapps/database:latest
+    - name: registry.gitlab.com/openstapps/openstapps/database:latest
       alias: elasticsearch
   script:
     - pnpm --filter=@openstapps/backend install
     - pnpm test:integration:backend
   artifacts:
-    when: always
+    when: on_failure
     paths:
       - backend/backend/coverage/integration-report-junit.xml
     reports: