Fix IDF 4.3.x compile

Author: blazoncek

wled00/network.h

@@ -7,7 +7,11 @@
 // Declare internal Arduino library function to work around the fact that WiFi.setHostname() does not propagate the
 // hostname to the network interface if it's been previously used.  The underlying ESP-IDF layer supports this just
 // fine; it's an oversight in the Arduino layer that we can work around by calling the internal function directly.
+#if (ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(4, 4, 0)) && (ESP_IDF_VERSION < ESP_IDF_VERSION_VAL(4, 5, 0))
 esp_err_t set_esp_interface_hostname(esp_interface_t interface, const char * hostname);
+#else
+#define set_esp_interface_hostname(a,b)
+#endif
 #endif
 
 #ifndef WLED_DISABLE_ESPNOW