Updated EKS-D to 1.26-12

[kschumy]

Issue number:

Closes #

Description of changes:
Update includes a new Kubernetes patch version

Testing done:

Terms of contribution:

By submitting this pull request, I agree that this contribution is dual-licensed under the terms of both the Apache License, version 2.0, and the MIT license.

[etungsten]

Built aws-k8s-1.26, launched instance, node joined cluster, runs pods

$ kubectl get nodes -o wide                                                                                                                                                                                        
NAME                                             STATUS   ROLES    AGE     VERSION                INTERNAL-IP      EXTERNAL-IP      OS-IMAGE                                KERNEL-VERSION   CONTAINER-RUNTIME
i-0d841b91c7abdc883.us-west-2.compute.internal   Ready    <none>   19m     v1.26.6-eks-3316523    192.168.23.35    54.213.225.245   Bottlerocket OS 1.15.0 (aws-k8s-1.26)   5.15.108         containerd://1.6.20+bottlerocket