Retrieves a FormFieldPosition

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

{
  "data": {
    "id": "4e433e41-c52b-40f6-8c86-bb0536f7c285",
    "type": "form_field_positions",
    "attributes": {
      "form_field_id": "eab058c9-8c67-4097-b123-e6c26abe6751",
      "form": "web_new_incident_form",
      "position": 1
    }
  }
}