force sending the network configuration when it's updated via Serial

Author: fabik111

src/ArduinoIoTCloudTCP.cpp

@@ -240,6 +240,9 @@ void ArduinoIoTCloudTCP::update()
    */
   #if NETWORK_CONFIGURATOR_ENABLED
   if(_configurator != nullptr && _state > State::Init && _configurator->update() == NetworkConfiguratorStates::UPDATING_CONFIG){
+    Message message = { ResetCmdId };
+    _thing.handleMessage(&message);
+    _device.handleMessage(&message);
     _state = State::ConfigPhy;
   }
   #endif