Creates an incident feedback

curl --request POST \
  --url https://api.rootly.com/v1/incidents/{incident_id}/feedbacks \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/vnd.api+json' \
  --data '{
  "data": {
    "type": "incident_feedbacks",
    "attributes": {
      "feedback": "<string>",
      "rating": 4,
      "anonymous": true
    }
  }
}'

{
  "data": {
    "id": "a6ce9de8-693a-49fd-94c4-5e51d2a206bf",
    "type": "incident_feedbacks",
    "attributes": {
      "rating": 4,
      "rating_humanized": "Very satisfied",
      "feedback": "New Feedback",
      "anonymous": true,
      "updated_at": "2025-08-01T13:27:19.410-07:00",
      "created_at": "2025-08-01T13:27:19.410-07:00"
    }
  }
}