Support Arduino >=3.x for custom network client

[moritz89]

Ardunio >=3.x changed the signature for setCACertBundle() in the WiFiClientSecure class.

[Links2004]

will this change not be needed here to?

arduinoWebSockets/examples/esp32_pio/CustomNetworkClient/src/network_client_secure.cpp

Lines 161 to 168 in 6eee4c6

	void WebSocketsNetworkClientSecure::setCACertBundle(const uint8_t *bundle) {
	if (_impl->gsm_client_secure_) {
	return _impl->gsm_client_secure_->setCACertBundle(bundle);
	} else if (_impl->wifi_client_secure_) {
	return _impl->wifi_client_secure_->setCACertBundle(bundle);
	}
	Serial.println(_impl->no_interface_error_);
	}

[moritz89]

Good catch updated the example