Decouple http server for metrics, health-checks endpoints

[lukasmrtvy]

It would be nice to decouple http server for metrics, health-checks endpoints, adding basic_auth makes health-checking ( from K8s for example ) and scraping metrics hard, not impossible. On the other hand, basic_auth is still relevant for stream.

Probably doable also with an extra sidecar proxy container, but the helm chart ( which is outdated ) does not allow adding extraContainers without patching

Thanks