Hello, since yesterday I see the following error on eksctl upgrade nodegroup -f mycluster.yml --cluster=mycluster --name=node-group-az-c-v3 --kubernetes-version=1.18

[ℹ]  AWS::EKS::Nodegroup/ManagedNodeGroup: UPDATE_FAILED – "Requested Nodegroup release version 1.18.8-20201007 is invalid. Allowed release version is 1.18.9-20201112 (Service: AmazonEKS; Status Code: 400; Error Code: InvalidParameterException; Request ID: f3b5b119-7e77-48fa-9d2d-55e6a4b1af22; Proxy: null)

The last deployment for that cluster was at yesterday 14:59 UTC. All following upgrades fail with this error. The used eksctl version is 0.30.0
The nodes are already on version v1.18.9-eks-d1db3c this was done by eksctl 0.30.0

From @hikhvar in slack

AWS rolled back the recommended AMI: awslabs/amazon-eks-ami#563 (comment)

The API docs tell us:

You cannot roll back a node group to an earlier Kubernetes version or AMI version.

so we should probably do nothing or log an info message.