Retrieves a RetrospectiveProcessGroup Step

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

{
  "data": {
    "id": "067d565e-3ff6-41d7-89d3-2e89953e92c4",
    "type": "retrospective_process_group_steps",
    "attributes": {
      "retrospective_process_group_id": "bece618b-e0af-4077-9d51-2fc6f38e62b2",
      "retrospective_step_id": "32528be1-e8d1-459a-9bbb-ad6ff21bd56c",
      "position": 1,
      "updated_at": "2025-10-31T18:58:46.589-07:00",
      "created_at": "2025-10-31T18:58:46.589-07:00"
    }
  }
}