[DNS] Fix hostByName returning negative values when lookup failed

`hostByName` does only return `1` on success, however it may return a negative value when lookup failed.
So need to check for the exact return value and not consider it a boolean return type.

lib/HttpClientLight/src/HttpClientLight.cpp

@@ -1173,7 +1173,7 @@ bool HTTPClientLight::connect(void)
     } else {
         IPAddress remote_addr;
         // Add include "ESP8266WiFi.h" for this to work
-        if (!WiFi.hostByName(_host.c_str(), remote_addr)) {
+        if (Network.hostByName(_host.c_str(), remote_addr) != 1) {
             return false;
         }
         if(!_client->connect(remote_addr, _port, _connectTimeout)) {