Not 100% Garden but Garden-adjacent - one of the steps we have in creating our Garden cluster is to create the secret object that contains the config for the docker-based credential helper. It seems like the EKS 1.24 upgrade instructions involves moving over to the kubelet-based credential helper configuration (which has the appearance of a K8s API object, although it's provided as a configuration file to the kubelet).
I'm not sure if this is actually needed or if the existing secret object for ECR auth is enough - has anybody upgraded their Garden clusters to EKS 1.24 and has already dealt with this?