Error when using 004-restrict-image-registries/tests.yaml

Warning Failed 44s (x3 over 81s) kubelet Failed to pull image "postgresql": rpc error: code = Unknown desc = reading manifest latest in docker.io/library/postgresql: requested access to the resource is denied

pull via podman lokal:

podman pull docker.io/library/postgresql
Trying to pull docker.io/library/postgresql:latest...
Error: initializing source docker://postgresql:latest: reading manifest latest in docker.io/library/postgresql: requested access to the resource is denied

das image heisst postgres und nicht postgresql