Creates a retrospective process

curl --request POST \
  --url https://api.rootly.com/v1/retrospective_processes \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/vnd.api+json' \
  --data '{
  "data": {
    "type": "retrospective_processes",
    "attributes": {
      "name": "<string>",
      "copy_from": "<string>",
      "description": "<string>",
      "retrospective_process_matching_criteria": {
        "severity_ids": [
          "<string>"
        ]
      }
    }
  }
}'

{
  "data": {
    "id": "25b1eb7c-7011-443b-a28c-a75be7ce9c94",
    "type": "retrospective_processes",
    "attributes": {
      "name": "Retrospective Process 1",
      "description": "Retrospective Process 1 Description",
      "is_default": false,
      "created_at": "2025-07-09T09:12:14.019-07:00",
      "updated_at": "2025-07-09T09:12:14.019-07:00",
      "retrospective_process_matching_criteria": {
        "severity_ids": [
          "7303ea83-56ea-422a-9b70-f0d73e138e63"
        ]
      }
    },
    "relationships": {
      "retrospective_steps": {
        "data": [
          {
            "id": "7cfcb269-0bce-444d-a346-c466219adc72",
            "type": "retrospective_steps"
          },
          {
            "id": "547aac1d-48e9-4db4-bd76-74fefd1d0be3",
            "type": "retrospective_steps"
          }
        ]
      },
      "severities": {
        "data": [
          {
            "id": "7303ea83-56ea-422a-9b70-f0d73e138e63",
            "type": "severities"
          }
        ]
      }
    }
  }
}