use local ip address for tests

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

codec/segmentio/grpc_test.go

@@ -36,7 +36,8 @@ func TestGRPCServer(t *testing.T) {
 
 	r := register.NewRegister()
 	b := broker.NewBroker(broker.Register(r))
-	s := gserver.NewServer(server.Codec("application/grpc+proto", protocodec.NewCodec()), server.Address(":12345"), server.Register(r), server.Name("helloworld"), gserver.Reflection(true))
+	s := gserver.NewServer(server.Codec("application/grpc+proto", protocodec.NewCodec()),
+		server.Address("127.0.0.1:0"), server.Register(r), server.Name("helloworld"), gserver.Reflection(true))
 	// create router
 	rtr := regRouter.NewRouter(router.Register(r))