Create webhook endpoint

curl --request POST \
  --url https://api.hyperline.co/v1/webhooks/endpoints \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "description": "Production webhook endpoint",
  "url": "https://example.com/webhook",
  "secret": "<string>",
  "rate_limit": 123,
  "event_types": [
    "customer.created",
    "customer.updated"
  ]
}'

{
  "id": "ep_1srOrx2ZWZBpBUvZwXKQmoEYga2",
  "description": "Production webhook endpoint",
  "url": "https://example.com/webhook",
  "rate_limit": 123,
  "event_types": [
    "customer.created",
    "customer.updated"
  ],
  "created_at": "2024-01-20T16:04:11Z"
}