linkerd/linkerd2 stable-2.14.6

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stable-2.14.6

This stable release back-ports bugfixes and improvements from recent edge
releases.

• multicluster: Added an imagePullSecrets configuration to
  linkerd-multicluster Helm chart (thanks @lhaussknecht!). (#11287)
• multicluster: Updated the service mirror to support gateways exposed on
  multiple IP addresses (thanks @MrFreezeex!) (#11499)
• Updated control plane logging so that client-go may emit error logs. This will
  also ensures that all logs are emitted in JSON when the json log format is
  enabled. (#11632)
• Added kubeAPI.clientBurst and kubeAPI.clientQPS configurations that allow
  users to configure the burst and QPS rate limits for the Kubernetes API
  clients used by the control plane. The default burst and qps values are now
  set at 200 and 100, respectively. The prior defaults limited bursts 10 and QPS
  to 5, which could cause throttling issues in clusters that schedule many pods
  quickly. (#11644)
• viz: Update the default prometheus version to v2.48.0. (#11633)