Update django dev server port to 8081

.github/workflows/test.yaml

@@ -74,7 +74,7 @@ jobs:
       - name: Start Django server
         run: |
             docker compose exec -T devweb bash -c "python manage.py loaddata fixtures/*.json"
-            docker compose exec -T devweb bash -c "nohup python manage.py runserver 0.0.0.0:8080 &"
+            docker compose exec -T devweb bash -c "nohup python manage.py runserver 0.0.0.0:8081 &"
             # Wait for the server to start
             until curl -s http://localhost:62202; do
               echo "Waiting for Django server to be up..."