Read a public holiday by id

curl --request GET \
  --url https://api.absentify.com/api/v1/public_holidays/{id} \
  --header 'X-API-KEY: <api-key>'

{
  "id": "<string>",
  "name": "<string>",
  "createdAt": "2023-11-07T05:31:56Z",
  "updatedAt": "2023-11-07T05:31:56Z",
  "country_code": "<string>",
  "county_code": "<string>",
  "public_holiday_days": [
    {
      "id": "<string>",
      "date": "2023-11-07T05:31:56Z",
      "year": 123,
      "custom_value": true,
      "duration": "Morning",
      "updatedAt": "2023-11-07T05:31:56Z",
      "createdAt": "2023-11-07T05:31:56Z",
      "public_holiday_day_languages": [
        {
          "id": "<string>",
          "name": "<string>",
          "language": "<string>"
        }
      ]
    }
  ]
}