Enhancements to backend setup of Cypress CI (#7051)

* Enhancements to backend setup of Cypress CI

* Remove custom wait for migrations script

.github/workflows/cypress.yaml

@@ -32,18 +32,7 @@ jobs:
         run: |
           cd care
           make docker_config_file=docker-compose.pre-built.yaml up 
-          while docker compose exec celery-beat bash -c "python manage.py showmigrations 2>/dev/null | cat | grep -q '\[ \]'"; do
-            >&2 echo "Migrations are not yet applied - sleeping"
-            sleep 10
-          done
-          echo "Migrations are applied"
-          cd ..
-
-      - name: Load dummy data into care backend 📂
-        run: |
-          cd care
-          docker compose exec backend bash -c "python manage.py load_dummy_data"
-          docker restart care-backend-1
+          make docker_config_file=docker-compose.pre-built.yaml load-dummy-data
           cd ..
 
       - name: Wait for care to be up ♻