Atualizar Cupom

curl --request PATCH \
  --url https://api.mginex.com/open-api/catalog/coupon/{couponId} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "code": "<string>",
  "enabled": true,
  "discount": {
    "type": "FIXED",
    "amount": 123
  },
  "expirationDate": "2023-11-07T05:31:56Z",
  "maxUses": 123
}
'

{
  "success": true
}