curl --request DELETE \
  --url https://api.example.com/api/sync/webhook/{webhook_id} \
  --header 'X-Site-ID: <x-site-id>' \
  --header 'X-Sync-Secret: <x-sync-secret>'

{
  "detail": [
    {
      "loc": [
        "<string>"
      ],
      "msg": "<string>",
      "type": "<string>",
      "input": "<unknown>",
      "ctx": {}
    }
  ]
}