Process a payment

curl --request POST \
  --url https://api.cloud.flexprice.io/v1/payments/{id}/process \
  --header 'x-api-key: <api-key>'

{
  "amount": 123,
  "attempts": [
    {
      "attempt_number": 123,
      "created_at": "<string>",
      "created_by": "<string>",
      "error_message": "<string>",
      "id": "<string>",
      "metadata": {},
      "payment_id": "<string>",
      "tenant_id": "<string>",
      "updated_at": "<string>",
      "updated_by": "<string>"
    }
  ],
  "created_at": "<string>",
  "created_by": "<string>",
  "currency": "<string>",
  "destination_id": "<string>",
  "destination_type": "INVOICE",
  "error_message": "<string>",
  "failed_at": "<string>",
  "gateway_metadata": {},
  "gateway_payment_id": "<string>",
  "gateway_tracking_id": "<string>",
  "id": "<string>",
  "idempotency_key": "<string>",
  "invoice_number": "<string>",
  "metadata": {},
  "payment_gateway": "<string>",
  "payment_method_id": "<string>",
  "payment_method_type": "CARD",
  "payment_status": "INITIATED",
  "payment_url": "<string>",
  "refunded_at": "<string>",
  "save_card_and_make_default": true,
  "succeeded_at": "<string>",
  "tenant_id": "<string>",
  "track_attempts": true,
  "updated_at": "<string>",
  "updated_by": "<string>"
}