Lists all the processed events

curl --request GET \
  --url https://commerce1.on-hellgate.dev/processed-events

{
  "data": [
    {
      "business_key": "<string>",
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "idempotency_key": "<string>",
      "inserted_at": "2023-11-07T05:31:56Z",
      "source": "<string>",
      "type": "<string>"
    }
  ],
  "next_page": 123,
  "previous_page": 123
}