fix: make sure we translate transportId to clientId (#1531)

Author: 0xFA11

com.unity.netcode.gameobjects/Runtime/Core/NetworkManager.cs

@@ -1348,10 +1348,10 @@ private void HandleRawTransportPoll(NetworkEvent networkEvent, ulong clientId, A
 #if DEVELOPMENT_BUILD || UNITY_EDITOR
                     s_TransportDisconnect.Begin();
 #endif
-                    OnClientDisconnectCallback?.Invoke(clientId);
-
                     clientId = TransportIdToClientId(clientId);
 
+                    OnClientDisconnectCallback?.Invoke(clientId);
+
                     m_TransportIdToClientIdMap.Remove(transportId);
                     m_ClientIdToTransportIdMap.Remove(clientId);