message: Updating k8s version in dualstack to valid version
  Dualstack is only for >= 1.21 in AKS
diff: "properties": {
  "provisioningState": "Succeeded",
  "maxAgentPools": 1,
  - "kubernetesVersion": "1.9.6",
  + "kubernetesVersion": "1.22.1",
  "dnsPrefix": "dnsprefix1",
  "agentPoolProfiles": [
  {
  "maxPods": 110,
  "osType": "Linux",
  "provisioningState": "Succeeded",
  - "orchestratorVersion": "1.9.6",
  + "orchestratorVersion": "1.22.1",
  "type": "VirtualMachineScaleSets",
  "scaleDownMode": "Deallocate",
  "availabilityZones": [
  "properties": {
  "provisioningState": "Creating",
  "maxAgentPools": 1,
  - "kubernetesVersion": "1.9.6",
  + "kubernetesVersion": "1.22.1",
  "dnsPrefix": "dnsprefix1",
  "agentPoolProfiles": [
  {
  "maxPods": 110,
  "osType": "Linux",
  "provisioningState": "Creating",
  - "orchestratorVersion": "1.9.6",
  + "orchestratorVersion": "1.22.1",
  "type": "VirtualMachineScaleSets",
  "scaleDownMode": "Deallocate",
  "availabilityZones": [
  