k8s upgrade to 1.27 fails when "ExpandPersistentVolumes" feature gate is enabled

[marek-obuchowicz]

/kind bug

**1. What kops version are you running?

kops-1.30.3

**2. What Kubernetes version are you running?

1.27.16

3. What cloud provider are you using?

AWS

4. What commands did you run? What is the simplest way to reproduce this issue?

kops upgrade cluster (1.26.x -> 1.27.16) / terraform apply / kops rolling-update cluster --yes

5. What happened after the commands executed?

master nodes don't come up after rolling update. Kubelet reports following error:

Feb 04 20:07:50 i-... kubelet[3571]: E0204 20:07:50.696548    3571 run.go:74] "command failed" err="failed to set feature gates from initial flags-based config: unrecognized feature gate: ExpandPersistentVolumes"

6. What did you expect to happen?

kops edit cluster should not accept cluster spec with deprecated feature gate

7. Please provide your cluster manifest. Execute
kops get --name my.example.com -o yaml to display your cluster manifest.
You may want to remove your cluster name and other sensitive information.

spec:
# [...]
  channel: stable
  cloudProvider: aws
  containerRuntime: containerd
  kubeAPIServer:
    enableAdmissionPlugins:
    - NamespaceLifecycle
    - LimitRanger
    - ServiceAccount
    - PersistentVolumeLabel
    - DefaultStorageClass
    - DefaultTolerationSeconds
    - MutatingAdmissionWebhook
    - ValidatingAdmissionWebhook
    - NodeRestriction
    - PersistentVolumeClaimResize
    - ResourceQuota
    featureGates:
      ExpandPersistentVolumes: "true"
  kubeControllerManager:
    featureGates:
      ExpandPersistentVolumes: "true"
# [...]
  kubelet:
    anonymousAuth: false
    authenticationTokenWebhook: true
    authorizationMode: Webhook
    cgroupDriver: systemd
    featureGates:
      ExpandPersistentVolumes: "true"
    imageGCHighThresholdPercent: 75
    imageGCLowThresholdPercent: 60
# [...]
  kubernetesVersion: 1.27.16
# [...]