Update protokollsystem auth import

protokollsystem/templates/config.py.j2

@@ -80,7 +80,7 @@ CALENDAR_TIMEZONE_MAP = {
 SESSION_PROTECTION = "strong"
 
 SECURITY_KEY = "{{ protokolle_security_key }}"
-from auth.auth import LdapManager, ADManager
+from common.auth import LdapManager, ADManager
 AUTH_MAX_DURATION = {{ protokolle_auth_max_duration }}
 AUTH_BACKENDS = [
 {% for auth in protokolle_auth_backends %}