List app templates

curl --request GET \
  --url https://api.gcore.com/fastedge/v1/template \
  --header 'Authorization: <api-key>'

{
  "count": 123,
  "templates": [
    {
      "id": 123,
      "name": "<string>",
      "short_descr": "<string>",
      "long_descr": "<string>",
      "api_type": "<string>",
      "owned": true
    }
  ]
}