Get statistics of donors

curl --request GET \
  --url https://api.helpyousponsor.com/v1/admin/statistics/donors \
  --header 'X-HYS-API-Key: <api-key>'

{
  "donorStatistics": [
    {
      "donorForm": {},
      "donors_count": 123,
      "archived_donors": 123
    }
  ]
}