* k8s doc: update for 0.9.1 and 0.8.0 releases (#10825)

* k8s doc: update for 0.9.1 and 0.8.0 releases

* Update website/content/docs/platform/k8s/helm/configuration.mdx
Co-authored-by: Theron Voran <tvoran@users.noreply.github.com>
Co-authored-by: Theron Voran <tvoran@users.noreply.github.com>

* Autopilot initial commit

* Move autopilot related backend implementations to its own file

* Abstract promoter creation

* Add nil check for health

* Add server state oss no-ops

* Config ext stub for oss

* Make way for non-voters

* s/health/state

* s/ReadReplica/NonVoter

* Add synopsis and description

* Remove struct tags from AutopilotConfig

* Use var for config storage path

* Handle nin-config when reading

* Enable testing autopilot by using inmem cluster

* First passing test

* Only report the server as known if it is present in raft config

* Autopilot defaults to on for all existi...