Cannot create more than 20 EKS Clusters in the same account using EKS Quickstart

[mttwise]

When ClusterAutoScaler is enabled (and possibly other settings) an inline policy gets added to the eks-quickstart-ManagedNodeInstance and eks-quickstart UnmanagedNodeInstance roles. After ~20 EKS clusters are created, the inline policies exceed the max character limit for an IAM role. Since IAM roles are shared at the account level, this means that no more than 20 clusters can be deployed globally.