Get external auth by template version

curl --request GET \
  --url https://cloud.local.wirtual.dev/api/v2/templateversions/{templateversion}/external-auth \
  --header 'Wirtual-Session-Token: <api-key>'

[
  {
    "authenticate_url": "<string>",
    "authenticated": true,
    "display_icon": "<string>",
    "display_name": "<string>",
    "id": "<string>",
    "optional": true,
    "type": "<string>"
  }
]