Retrieves an override shift

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

{
  "data": {
    "id": "f6b2015b-eb9e-4e7d-a91c-4cabf863b35d",
    "type": "shifts",
    "attributes": {
      "schedule_id": "970f32de-9d6e-4c70-b67d-c43457bb2c2b",
      "rotation_id": "87768458-00dd-480c-83a9-3e46a235aee3",
      "user_id": 762,
      "starts_at": "2026-01-22T10:20:35.000-08:00",
      "ends_at": "2026-01-22T18:20:35.000-08:00",
      "is_override": true
    },
    "relationships": {
      "shift_override": {
        "data": null
      },
      "user": {
        "data": {
          "id": "762",
          "type": "users"
        }
      }
    }
  }
}