This edge release continues to improve dynamic Policy statuses and
introduces support for header-based routing.
* Destination Controller
* Added OutboundPolicies API, for use by `linkerd-proxy` to route
outbound traffic
* Improved diagnostic log messages
* Fixed sending of spurious profile updates
* Proxy
* Use the new OutboundPolicies API, supporting Gateway API-style routes
in the outbound proxy
* Policy Controller
* Support highly available Policy Controller by utilizing
`policy-controller-write` Lease when patching HTTPRoutes
* Consider the `status` field and filter out HTTPRoutes which have not
been accepted
* Added KubeAPI server ports to `ignoreOutboundPorts` of `proxy-injector`
* Updated HTTPRoute version from `v1alpha1` to `v1beta2`
* Updated `network-validator` helm charts to use `proxy-init` resources
* Fixed Grafana regular expression, enabling monitoring of filesystem
usage (thanks @h-dav!)