fix superClient

Tun/UDPHole/SDLUDPHoleSession.swift

@@ -59,13 +59,13 @@ actor SDLUDPHoleSession {
         let udpHole = self.udpHole
         self.udpHole = nil
         self.localAddress = nil
+        await udpHole?.stop()
 
         let udpHoleV6 = self.udpHoleV6
         self.udpHoleV6 = nil
+        udpHoleV6?.stop()
         
         await self.proberActor.cancelAll()
-        await udpHole?.stop()
-        udpHoleV6?.stop()
     }
 
     func send(type: SDLPacketType, data: Data, remoteAddress: SocketAddress) async {