message: Update __main__.py
  fixing missing provider, fixing issue with sshkey
diff: import pulumi
  from pulumi import ResourceOptions
  +from pulumi_kubernetes import Provider
  from pulumi_azure.core import ResourceGroup
  from pulumi_azure.role import Assignment
  from pulumi_azure.ad import Application, ServicePrincipal, ServicePrincipalPassword
  @@ -98,9 +99,11 @@ aks = KubernetesCluster(
  linux_profile=(
  {
  "adminUsername": "azureuser",
  - "ssh_key": {
  + "ssh_key": [
  + {
  "keyData": SSHKEY
  }
  + ]
  }
  ),
  service_principal={
  