Bug: Filtering of statistics leads to Envoy missing configuration

**Summary**

When customizing statistics emitted by Envoy via inclusion/exclusion filters, for example

```
stats_config:
stats_matcher:
inclusion_list:
patterns:
- safe_regex:
regex: "*rq*"
```

Envoy will enter a state where it will no longer properly synchronize with the App Mesh state of the world. This is due to an existing issue in Envoy where they leverage [statistics for control flow internally](https://github.com/envoyproxy/envoy/issues/9856). By filtering out certain statistics, Envoy is not able to determine when clusters are ready and process received configuration correctly.

**Steps to Reproduce**

Setting a customized stats configuration that includes stats filters.

**Are you currently working around this issue?**

Overall, our recommendation is to not perform any filtering of statistics in Envoy and instead leverage. Instead, we recommend reducing the overall volume of metrics emitted by leveraging the `ENVOY_STATS_FLUSH_INTERVAL` environment variable to reduce stats emission period (the default is 6 seconds).

If absolutely necessary, we've found that adding the following inclusion pattern

```
- suffix: warming_clusters
```

appears to resolve the problem, but we cannot guarantee there won't be future issues.