Retrieves an override shift

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

{
  "data": {
    "id": "5c88b4cd-2f91-4bf9-ad2b-706210b2adb6",
    "type": "shifts",
    "attributes": {
      "schedule_id": "262c4268-f409-4179-a431-8da9c15a70a1",
      "rotation_id": "154b8f23-1b9b-48fe-b9a1-09dac638c2dc",
      "starts_at": "2025-09-15T09:03:37.000-07:00",
      "ends_at": "2025-09-15T17:03:37.000-07:00",
      "is_override": true
    },
    "relationships": {
      "shift_override": {
        "data": null
      },
      "user": {
        "data": {
          "id": "371",
          "type": "users"
        }
      }
    }
  }
}