Retrieves an override shift

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

{
  "data": {
    "id": "da1abbde-d658-48d4-9769-b67b15d7501e",
    "type": "shifts",
    "attributes": {
      "schedule_id": "ef209494-9804-4ad1-baf0-5fbe8e65156c",
      "rotation_id": "3e0655a2-1ab1-4f27-8ef4-b72e1f1d6855",
      "user_id": 825,
      "starts_at": "2026-02-01T10:43:53.000-08:00",
      "ends_at": "2026-02-01T18:43:53.000-08:00",
      "is_override": true
    },
    "relationships": {
      "shift_override": {
        "data": null
      },
      "user": {
        "data": {
          "id": "825",
          "type": "users"
        }
      }
    }
  }
}