Creates a new checkout

curl --request POST \
  --url https://api.commerce.coinbase.com/checkouts \
  --header 'Content-Type: application/json' \
  --header 'X-CC-Api-Key: <api-key>' \
  --data '"<any>"'

{
  "brand_color": "<string>",
  "brand_logo_url": "<string>",
  "coinbase_managed_merchant": true,
  "description": "<string>",
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "local_price": {
    "amount": "<string>",
    "currency": "<string>"
  },
  "name": "<string>",
  "organization_name": "<string>",
  "pricing_type": "fixed_price",
  "requested_info": "name",
  "resource": "<string>"
}