EKS - add 1.31 and remove 1.27

[mantis-toboggan-md]

Summary

https://github.com/rancher/eks-operator/issues/861

Adds version 1.31 and removes 1.27, see https://docs.aws.amazon.com/eks/latest/userguide/kubernetes-versions.html

Checklist

• [x] The PR is linked to an issue and the linked issue has a Milestone, or no issue is needed
• [x] The PR has a Milestone
• [x] The PR template has been filled out
• [x] The PR has been self reviewed
• [x] The PR has a reviewer assigned
• [x] The PR has automated tests or clear instructions for manual tests and the linked issue has appropriate QA labels, or tests are not needed
• [x] The PR has reviewed with UX and tested in light and dark mode, or there are no UX changes