test: fix cctest failure on Windows

Linux converts the ipv6 address "::" to "::1", while windows does not.
By explicitly using "::1" in the test we allow it to succeed on windows.

PR-URL: https://github.com/nodejs/node/pull/14111
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Eugene Ostroukhov <eostroukhov@google.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Kunal Pathak <kunal.pathak@microsoft.com>
Reviewed-By: João Reis <reis@janeasystems.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

test/cctest/test_inspector_socket_server.cc

@@ -621,7 +621,7 @@ TEST_F(InspectorSocketServerTest, BindsToIpV6) {
   ASSERT_TRUE(server->Start());
 
   SocketWrapper socket1(&loop);
-  socket1.Connect("::", server.port(), true);
+  socket1.Connect("::1", server.port(), true);
   socket1.Write(WsHandshakeRequest(MAIN_TARGET_ID));
   socket1.Expect(WS_HANDSHAKE_RESPONSE);
   server->Stop(ServerHolder::CloseCallback);