Retrieves a custom form

curl --request GET \
  --url https://api.rootly.com/v1/custom_forms/{id} \
  --header 'Authorization: Bearer <token>'

{
  "data": {
    "id": "505d04e6-a3eb-4fe7-8fb1-bae8835511ff",
    "type": "custom_forms",
    "attributes": {
      "slug": "dicta-sit-consequatur-praesentium",
      "name": "Dicta sit consequatur praesentium.",
      "description": "Sed tenetur temporibus distinctio.",
      "enabled": true,
      "command": "dicta-sit-consequatur-praesentium",
      "created_at": "2025-11-06T13:21:08.713-08:00",
      "updated_at": "2025-11-06T13:21:08.713-08:00"
    }
  }
}