Linkerd - edge-23.2.1

edge-23.2.1

This edge release sees the linkerd-cni plugin moved to
linkerd2-proxy-init and released from that repository. An iptables
improvement to linkerd-cni and proxy-init is the main focus. Other
minor fixes are also included.

• Changed proxy-init iptables rules to be idempotent upon init pod
  restart (thanks @jim-minter!)
• Improved logging in proxy-init and linkerd-cni
• Added the server_port_subscribers metric to track the number of subscribers
  to Server changes associated with a pod's port
• Added the service_subscribers metric to track the number of subscribers to
  Service changes
• Fixed a small memory leak in the opaque ports watcher
• No longer apply waitBeforeExitSeconds to control plane, viz and jaeger
  extension pods
• Added support for the internalTrafficPolicy of a service (thanks @yc185050!)
• Added limits and requests to network-validator for ResourceQuota interop
• Added block chomping to strip trailing new lines in ConfigMap (thanks @avdicl!)
• Added multicluster gateway nodeSelector and tolerations helm parameters
• Added protection against nil dereference in resources helm template