Add cast to (voidPrtFuncPtr)

Author: pennam

src/ArduinoIoTCloudTCP.cpp

@@ -286,8 +286,8 @@ int ArduinoIoTCloudTCP::begin(bool const enable_watchdog, String brokerAddress,
   if (enable_watchdog) {
     watchdog_enable();
 #ifdef WIFI_HAS_FEED_WATCHDOG_FUNC
-      WiFi.setFeedWatchdogFunc(watchdog_reset);
-#endif
+      WiFi.setFeedWatchdogFunc((voidPrtFuncPtr)watchdog_reset);
+#endif /* WIFI_HAS_FEED_WATCHDOG_FUNC */
   }
 
 #endif