<!-- If you need to report a security issue please visit https://github.com/apache/dubbo/security/policy -->

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

## Describe the proposal
<!-- Please use this for a concrete design proposal for functionality. -->
<!-- If you just want to request a new feature and discuss the possible business value, create a Feature Request. -->

We should collect the count of no provider available exception in MetricsFilter.

With: `RpcException.isNoInvokerAvailableAfterFilter()`

applicationModel = ApplicationModel.defaultModel();
        applicationModel.getApplicationConfigManager().setApplication(config);
        defaultCollector = new DefaultMetricsCollector();
        defaultCollector.setCollectEnabled(true);
        MetricsConfig metricsConfig = new MetricsConfig();
        AggregationConfig aggregationConfig = new AggregationConfig();
        aggregationConfig.setEnabled(true);
        aggregationConfig.setBucketNum(12);
        aggregationConfig.setTimeWindowSeconds(120);
        metricsConfig.setAggregation(aggregationConfig);
        applicationModel.getApplicationConfigManager().setMetrics(metricsConfig);
        defaultCollector = applicationModel.getBeanFactory().getBean(DefaultMetricsCollector.class);
        interfaceName = "org.apache.dubbo.MockInterface";
        methodName = "mockMethod";
        group = "mockGroup";
        version = "1.0.0";
        invocation = new RpcInvocation(methodName, interfaceName, "serviceKey", null, null);
        invocation.setTargetServiceUniqueName(group + "/" + interfaceName + ":" + version);
        invocation.setAttachment(GROUP_KEY, group);
        invocation.setAttachment(VERSION_KEY, version);
        side = CommonConstants.CONSUMER;
        invocation.setInvoker(new TestMetricsInvoker(side));
        RpcContext.getServiceContext().setUrl(URL.valueOf("test://test:11/test?accesslog=true&group=dubbo&version=1.1&side=" + side));
    }
    @AfterEach
    public void teardown() {
        applicationModel.destroy();
    }
    @Test
    void testRequestsMetrics() {