use backend workflow

.github/workflows/main.yaml

@@ -6,41 +6,6 @@ on:
   workflow_dispatch:
 
 jobs:
-  # main:
-  #   uses: ocadotechnology/codeforlife-workspace/.github/workflows/backend.yaml@main
-  #   secrets: inherit
-
-  build:
-    runs-on: ubuntu-latest
-    # Build if:
-    #  - the repo's owner is Ocado Tech.
-    #  - the repo is not the backend template.
-    #  - a change is made to the default branch.
-    if: |
-      github.repository_owner_id == 2088731 &&
-      github.repository_id != 610204172 &&
-      github.ref_name == github.event.repository.default_branch
-    steps:
-      - name: 🐍 Set up Python 3.12 Environment
-        uses: ocadotechnology/codeforlife-workspace/.github/actions/python/setup-environment@main
-        with:
-          python-version: 3.12
-
-      - name: 🏗️ Generate requirements.txt
-        run: pipenv requirements > requirements.txt
-
-      - name: 🏗️ Collect Static Files
-        run: pipenv run python ./manage.py collectstatic --noinput --clear
-
-      - name: 📤 Upload Artifact
-        uses: actions/upload-artifact@v4
-        with:
-          name: build
-          path: |
-            requirements.txt
-            static/
-
-  release:
-    needs: [build]
-    uses: ocadotechnology/codeforlife-workspace/.github/workflows/release.yaml@main
+  main:
+    uses: ocadotechnology/codeforlife-workspace/.github/workflows/backend.yaml@main
     secrets: inherit