Retrieves an override shift

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

{
  "data": {
    "id": "cab762aa-2e48-55b6-bcd1-24055b64c7b2",
    "type": "shifts",
    "attributes": {
      "schedule_id": "1a7906b8-de9a-4b52-817b-87c9c70b02a2",
      "rotation_id": "22fa2769-0ffa-4777-b6b8-b688ba1b98a1",
      "starts_at": "2025-11-05T10:15:20.000-08:00",
      "ends_at": "2025-11-05T18:15:20.000-08:00",
      "is_override": true
    },
    "relationships": {
      "shift_override": {
        "data": null
      },
      "user": {
        "data": {
          "id": "404",
          "type": "users"
        }
      }
    }
  }
}