Use Dns.GetHostAddresses in Socket.Connect (#37324)

Replace Dns.GetHostAddressesAsync with Dns.GetHostAddresses in Socket.Connect

Author: cnblogs-dudu

src/System.Net.Sockets/src/System/Net/Sockets/Socket.cs

@@ -899,7 +899,7 @@ public void Connect(string host, int port)
             }
             else
             {
-                IPAddress[] addresses = Dns.GetHostAddressesAsync(host).GetAwaiter().GetResult();
+                IPAddress[] addresses = Dns.GetHostAddresses(host);
                 Connect(addresses, port);
             }