dubbo-admin无法看到消费者的注册信息(no any info about dubbo-consumer in dubbo-admin)

- [ ] I have searched the [issues](https://github.com/apache/dubbo/issues) of this repository and believe that this is not a duplicate.
- [ ] I have checked the [FAQ](https://github.com/apache/dubbo/blob/master/FAQ.md) of this repository and believe that this is not a duplicate.

### Environment

* Dubbo version: 2.7.8
* Operating System version: win10
* Java version: 8
* dubbo-dependencies-zookeeper 2.7.8

### Steps to reproduce this issue

1. run zk
2. run dubbo-admin.
3. provider user @DubboService(version = "1.0.0") and consumer use @DubboReference(version = "1.0.0")
4. run BootDubboProviderApplication and BootDubboConsumerApplication
5. source : https://github.com/aQzing/dubbo-demo/tree/master/boot-dubbo-parent

Pls. provide [GitHub address] to reproduce this issue.

### Expected Result

dubbo-admin own the info about dubbo-consumer if use @DubboService(version = "1.0.0")

### Actual Result

no any info about dubbo-consumer but dubbo-provider

If there is an exception, please attach the exception trace:

```
Just put your stack trace here!
```

Reproduce the issue by running ZooKeeper, dubbo-admin, BootDubboProviderApplication, and BootDubboConsumerApplication from the linked dubbo-demo source with the stated annotations and versions. Compare the consumer and provider registration views in dubbo-admin; done means the consumer information appears as expected.

Written by the indexing model from the issue text.