kops upgrade to 1.31.0 (to kuberenetes 1.31.6) brings up worker node with older version

[Sampathreddygopireddy118]

/kind bug

1. What kops version are you running? The command kops version, will display
this information.

• 1.31.0
  2. What Kubernetes version are you running? kubectl version will print the
  version if a cluster is running or provide the Kubernetes version specified as
  a kops flag.
• 1.31.6
  3. What cloud provider are you using?
  AWS
  4. What commands did you run? What is the simplest way to reproduce this issue?
• we are running with kops 1.29.0 (with kubernetes 1.29.5) and trying to upgrade to kops 1.31.0 (with kuberenetes 1.31.6).
  spec:
  kubernetesVersion: 1.31.6
  upgraded the version for the above attribute and ran the below command
• kops update --yes
  5. What happened after the commands executed?
• cluster got upgraded successfully, master node came up with latest version (1.31.6) and worker node came up with older version (1.29.5)
  6. What did you expect to happen?
• expectation is to comeup both master and worker node with latest version (1.31.6)

7. Anything else do we need to know?

• without making any changes if we ran the kops update again then the worker nodes are coming up with 1.31.6

[rifelpet]

Please follow the upgrade instructions mentioned in the release notes https://github.com/kubernetes/kops/releases/tag/v1.31.0