Hiroki FUKUDA

`curl https://gcr.io/kaniko-project/executor` says `Found`, so it seems that kaniko has already migrated its repositories to [gcr.io repositories hosted on Artifact Registry](https://cloud.google.com/artifact-registry/docs/transition/auto-migrate-gcr-ar?hl=en#migrate-gcrio-hosted-ar). If so, you can continue to use `gcr.io/kaniko-project/executor` as...