Update vpc-cni to 1.12.6

[wind0r]

Description

vpc-cni version 1.11 isnt supported for kubernetes 1.26.

see: https://docs.aws.amazon.com/eks/latest/userguide/kubernetes-versions.html

Before you upgrade to Kubernetes 1.26, upgrade your Amazon VPC CNI plugin for Kubernetes to version 1.12 or later. If you don't upgrade to Kubernetes 1.26, earlier versions of the Amazon VPC CNI plugin for Kubernetes crash. For more information, see [Working with the Amazon VPC CNI plugin for Kubernetes for Kubernetes Amazon EKS add-on](https://docs.aws.amazon.com/eks/latest/userguide/managing-vpc-cni.html).

Also for 1.25 it is suggested to use v1.11.4+
See:
https://github.com/aws/amazon-vpc-cni-k8s#recommended-version

Checklist

• Added tests that cover your change (if possible)
• Added/modified documentation as required (such as the README.md, or the userdocs directory)
• Manually tested
• Made sure the title of the PR is a good description that can go into the release notes
• (Core team) Added labels for change area (e.g. area/nodegroup) and kind (e.g. kind/improvement)

BONUS POINTS checklist: complete for good vibes and maybe prizes?! 🤯

• Backfilled missing tests for code in same general area 🎉
• Refactored something and made the world a better place 🌟

[Himangini]

nice catch, we have broken workflow which i just noticed 😓, we'll fix it soon.

[Himangini]

LGTM 👍🏻