Container Instance Deploy Samples are out of Date

[tshaiman]

quickstarts/microsoft.containerinstance/aci-vnet

Issue Details

1. The Template is using version API Version 2019-12-01 which is not the latest
2. There is no longer need to define network profile in the new version

old definition :

networkProfile: {
      id: networkProfile.id
    }

new definition :

subnetIds : [ 
{ 
  name : ''name", 
  id : "subnetResourceID"
  }
 ]

reference : https://learn.microsoft.com/en-us/azure/templates/microsoft.containerinstance/containergroups?pivots=deployment-language-arm-template