backend: log oauth payload on invalid_token error

Signed-off-by: Jakub Sokołowski <jakub@status.im>

spiffworkflow-backend/src/spiffworkflow_backend/routes/user.py

@@ -264,6 +264,7 @@ def login_return(code: str, state: str, session_state: str = "") -> Optional[Res
         )
 
     else:
+        current_app.logger.error(f"id_token not found in payload from provider: {auth_token_object}")
         raise ApiError(
             error_code="invalid_token",
             message="Login failed. Please try again",