Upgrade to Artifact Registry
As far as I know, kaniko uses Google Container Registry to provide the official docker image.
kaniko is meant to be run as an image: gcr.io/kaniko-project/executor
As Google has deprecated GCR in favor of Artifact Registry I was wondering, if you already migrated to Artifact Registry and if one should use updated image-URLs.
The old gcr-repository notes that on upgrade should be performed:
https://console.cloud.google.com/gcr/images/kaniko-project
curl https://gcr.io/kaniko-project/executor says <a href="https://console.cloud.google.com/artifacts/docker/kaniko-project/us/gcr.io/executor">Found</a>, so it seems that kaniko has already migrated its repositories to gcr.io repositories hosted on Artifact Registry.
If so, you can continue to use gcr.io/kaniko-project/executor as before.