linkerd/linkerd2 edge-21.11.2

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edge-21.11.2

This edge release introduces a new Services page in the web dashboard that shows
live calls and route metrics for meshed services. Additionally, the proxy-init
container is no longer enforced to run as root. Lastly, the proxy can now retry
requests with a content-length header—permitting requests emitted by grpc-go
to be retried.

• Removed hardcoding that enforced the proxy-init container to run as root
  (thanks @chrischdi!)
• Added support for retrying requests without a content-length header
• Changed service discovery logs from TRACE to DEBUG
• Fixed issue with policy controller where it assumed linkerd was the name of
  the control plane namespace, leading to issues with installations that use a
  non-default namespace name
• Added support for ephemeral storage requests and limits configured either
  through the CLI or annotations (thanks @michaellzc!)
• Deprecated support for topology keys and added support for topology aware
  hints
• Added logFormat and logLevel configuration values for the proxy-init
  container (thanks @gusfcarvalho!)
• Added services to the web dashboard (thanks @krzysztofdrys!)
• Updated example commands in the web dashboard to use the viz subcommand when
  necessary (thanks @mikutas!)
• Removed references to linkerd-sp-validator service account in the
  linkerd-psp role binding (thanks @multimac!)