List all services

curl --request GET \
  --url https://api.caspen.com/v1/services

{
  "data": [
    {
      "id": "<string>",
      "category_id": "<string>",
      "progress_note_template_id": "<string>",
      "appointment_notification_set_id": "<string>",
      "tax_id": "<string>",
      "name": "<string>",
      "description": "<string>",
      "item_code": "<string>",
      "duration": 123,
      "buffer_before_duration": 123,
      "buffer_after_duration": 123,
      "price": 123,
      "price_unit": "<string>",
      "online_booking": true,
      "practitioner_ids": [
        "<string>"
      ],
      "location_ids": [
        "<string>"
      ],
      "tag_ids": [
        "<string>"
      ],
      "created_at": "<string>"
    }
  ],
  "links": {
    "prev": "<string>",
    "next": "<string>"
  }
}