Explicitly convert the socket type to an integer

The incoming type is an enum, so explicitly convert it to
before comparing against integers.

include/enet.h

@@ -5447,7 +5447,7 @@ extern "C" {
     }
 
     ENetSocket enet_socket_create(ENetSocketType type) {
-        return socket(PF_INET6, type == ENET_SOCKET_TYPE_DATAGRAM ? SOCK_DGRAM : SOCK_STREAM, 0);
+        return socket(PF_INET6, (int)type == ENET_SOCKET_TYPE_DATAGRAM ? SOCK_DGRAM : SOCK_STREAM, 0);
     }
 
     int enet_socket_set_option(ENetSocket socket, ENetSocketOption option, int value) {