aws-auth configMap has been deprecated

[ralgozino]

From: https://docs.aws.amazon.com/eks/latest/userguide/auth-configmap.html

The new method is to use access entries: https://docs.aws.amazon.com/eks/latest/userguide/access-entries.html that should be available and the default starting from 1.23.

Newly created clusters, if not otherwise specified at creation time, will NOT have support for the aws-auth configmap:

https://docs.aws.amazon.com/eks/latest/userguide/grant-k8s-access.html#set-cam