Retrieves a RetrospectiveProcessGroup Step

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

{
  "data": {
    "id": "6731f784-a336-42d3-a3d7-4c67cb321b97",
    "type": "retrospective_process_group_steps",
    "attributes": {
      "retrospective_process_group_id": "cdc0152f-df91-4022-881f-032b82824976",
      "retrospective_step_id": "7bee2372-ccc2-4cd3-8ee6-d24950c2d3fc",
      "position": 1,
      "updated_at": "2025-11-14T13:17:23.086-08:00",
      "created_at": "2025-11-14T13:17:23.086-08:00"
    }
  }
}