Update a webhook

curl --request PATCH \
  --url https://service.bluumfinance.com/v1/webhooks/{webhook_id} \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'Content-Type: application/json' \
  --data '{}'

{
  "status": "success",
  "data": {
    "webhook": {
      "id": "123e4567-e89b-12d3-a456-426614174000",
      "name": "Updated Webhook",
      "url": "https://example.com/webhooks/orders",
      "status": "ACTIVE",
      "eventTypes": [],
      "createdAt": "2026-01-15T10:00:00Z",
      "updatedAt": "2026-01-16T10:00:00Z"
    }
  }
}