Get commitments graph

curl --request GET \
  --url https://api.helpyousponsor.com/v1/commitments/{date_from}/{date_to}/graph \
  --header 'X-HYS-API-Key: <api-key>'

{
  "commitment_graph_data": [
    {
      "date": "2023-12-25",
      "total": 123
    }
  ]
}