Migrate away from gcr.io/k8s-testimages repo

[BenTheElder]

/kind bug
/priority important-soon
kubernetes/k8s.io#1523

gcr.io/k8s-testimages is a legacy Google-owned GCR/AR repo. We should migrate to a community-owned AR registry.

See for example kubernetes/k8s.io#1523 (comment)

https://cs.k8s.io/?q=k8s-testimages&i=nope&literal=nope&files=&excludeFiles=&repos=kubernetes-sigs/csi-driver-nfs

[k8s-triage-robot]

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• After 90d of inactivity, lifecycle/stale is applied
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/lifecycle stale

[BenTheElder]

/lifecycle frozen
this has to be fixed, eventually these outdated images may not be available anymore.

[darshansreenivas]

/assign @darshansreenivas

[darshansreenivas]

#992