chore(deps): update dependency django-appconf to v1.2.0

Author: renovate[bot]

requirements.txt

@@ -12,7 +12,7 @@ cffi==2.0.0
 # For Azure Tenant auth
 cryptography==46.0.3
 Django==5.2.8
-django-appconf==1.1.0
+django-appconf==1.2.0
 django-auth-ldap==5.2.0
 django-celery-beat==2.8.1
 django-cors-headers==4.9.0