### Environment

* Dubbo version: 3.0.2
* Operating System version: win7
* Java version: 1.8

### Steps to reproduce this issue

注解如下：
@DubboReference(async = true, methods = {@Method(name = "xxx", isReturn = false)})

查看代码发现：
ReferenceCreator :: createMethodConfig方法中mcDataBinder.bind(propertyValues) 这里绑定不上"isReturn"属性

原因如下：
底层代码会生成一个MethodConfig的BeanInfo对象，然后会校验属性是否在这个BeanInfo的属性集中，如果不在会被过滤掉

然而用如下代码做测试：
Class beanClass = Class.forName("org.apache.dubbo.config.MethodConfig");
BeanInfo beanInfo = Introspector.getBeanInfo(beanClass);

此时发现beanInfo中的属性集中没有"isReturn"属性，只有"return"属性，所以isReturn属性在绑定时被过滤掉了




this.stat = stat;
    }
    @Deprecated
    public Boolean isRetry() {
        return retry;
    }
    @Deprecated
    public void setRetry(Boolean retry) {
        this.retry = retry;
    }
    @Deprecated
    public Boolean isReliable() {
        return reliable;
    }
    @Deprecated
    public void setReliable(Boolean reliable) {
        this.reliable = reliable;
    }
    public Integer getExecutes() {
        return executes;
    }
    public void setExecutes(Integer executes) {
        this.executes = executes;
    }
    public Boolean getDeprecated() {
        return deprecated;
    }
    public void setDeprecated(Boolean deprecated) {
        this.deprecated = deprecated;
    }