swh.auth: Fix unused import

swh/auth/__init__.py

@@ -3,7 +3,7 @@
 # License: GNU Affero General Public License version 3, or any later version
 # See top-level LICENSE file for more information
 
-from typing import Any, Dict, Optional, Tuple
+from typing import Any, Dict, Optional
 from urllib.parse import urlencode
 
 from keycloak import KeycloakOpenID