Fixes
- Disable gloo metrics service as it is unused, and CPU intensive. (#3849)
- Fixed a bug where a bad authconfig which should invalidate a single virtual service was incorrectly invalidating the entire gateway (#3538)
- Fixed a bug where invalid route replacement did not correctly replace routes that referred to a missing
UpstreamGroup, which potentially resulted in incorrect config being sent to envoy. Now, the route will be replaced correctly according to the invalid config policy. (#3818)