fix: add versioned echo interface

Author: fishtailfu

dubbo-examples/dubbo-discovery-example/dubbo-quick-consumer/src/main/java/com/tencent/polaris/dubbo/discovery/example/consumer/GreetingServiceConsumer.java

@@ -28,7 +28,7 @@ public class GreetingServiceConsumer {
     @DubboReference(loadbalance = "roundrobin")
     private GreetingService greetingService;
 
-    @DubboReference
+    @DubboReference(version = "1.0.0")
     private EchoService echoService;
 
     public String doSayHello(String name) {

dubbo-examples/dubbo-discovery-example/dubbo-quick-provider/src/main/java/com/tencent/polaris/dubbo/discovery/example/provider/AnnotatedEchoService.java

@@ -20,7 +20,7 @@
 import com.tencent.polaris.dubbo.example.api.EchoService;
 import org.apache.dubbo.config.annotation.DubboService;
 
-@DubboService
+@DubboService(version = "1.0.0")
 public class AnnotatedEchoService implements EchoService {
 
     @Override