use generic version message encoder

Author: fabik111

src/ArduinoIoTCloudDevice.cpp

@@ -120,8 +120,8 @@ ArduinoCloudDevice::State ArduinoCloudDevice::handleSendCapabilities() {
 
 #if defined(BOARD_HAS_WIFI)
   String WiFiFWVersion = WiFi.firmwareVersion();
-  WiFiFWVersionMessage wifiFWVersionMessage = { WiFiFWVersionMessageId, WiFiFWVersion.c_str() };
-  deliver(reinterpret_cast<Message*>(&wifiFWVersionMessage));
+  VersionMessage versionMessage = { WiFiFWVersionMessageId, WiFiFWVersion.c_str() };
+  deliver(reinterpret_cast<Message*>(&versionMessage));
 #endif
   /* Subscribe to device topic to request */
   ThingBeginCmd thingBegin = { ThingBeginCmdId };