Fix: CI mode with CI=true env var

Added CI=true so prod.py uses permissive localhost ALLOWED_HOSTS

Author: AhmadMWaddah

.github/workflows/ci.yml

@@ -200,6 +200,7 @@ jobs:
       - name: Run Django check (production)
         env:
           DJANGO_SETTINGS_MODULE: config.settings.prod
+          CI: 'true'
         run: |
           python manage.py check --deploy