Add None-check for VeSync fan device.state.display_status (home-assistant#153055)

Author: SapuSeven

homeassistant/components/vesync/fan.py

@@ -141,7 +141,9 @@ def extra_state_attributes(self) -> dict[str, Any]:
             attr["active_time"] = self.device.state.active_time
 
         if hasattr(self.device.state, "display_status"):
-            attr["display_status"] = self.device.state.display_status.value
+            attr["display_status"] = getattr(
+                self.device.state.display_status, "value", None
+            )
 
         if hasattr(self.device.state, "child_lock"):
             attr["child_lock"] = self.device.state.child_lock