Creates a Form Field Placement

curl --request POST \
  --url https://api.rootly.com/v1/form_fields/{form_field_id}/placements \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/vnd.api+json' \
  --data '{
  "data": {
    "type": "form_field_placements",
    "attributes": {
      "form_set_id": "<string>",
      "form": "<string>",
      "position": 123,
      "required": true,
      "required_operator": "and",
      "placement_operator": "and"
    }
  }
}'

{
  "data": {
    "id": "39d68ff3-4823-4673-9f1e-bf582f5b53dc",
    "type": "form_field_placements",
    "attributes": {
      "form_field_id": "3588f0d0-f0d4-4efe-b6a1-3ac23f39a019",
      "form_set_id": "02d7834e-7743-4a31-b649-0bf90c1bb329",
      "form": "web_update_incident_form",
      "position": 1,
      "required": false,
      "placement_operator": "and",
      "required_operator": "and",
      "non_editable": false
    }
  }
}