Retrieves an override shift

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

{
  "data": {
    "id": "e259dd5b-f9fd-4457-9d21-23fe197b4273",
    "type": "shifts",
    "attributes": {
      "schedule_id": "029db155-3cb8-449a-93fa-7290ff7f2b33",
      "rotation_id": "4254fe47-5a8d-4400-ac9b-d35544f050bb",
      "user_id": 919,
      "starts_at": "2026-02-22T17:51:28.000-08:00",
      "ends_at": "2026-02-23T01:51:28.000-08:00",
      "is_override": true
    },
    "relationships": {
      "shift_override": {
        "data": null
      },
      "user": {
        "data": {
          "id": "919",
          "type": "users"
        }
      }
    }
  }
}