uuid is not returned in sandbox and create conflict with the openapi spec

[jinfwhuang]

https://github.com/circlefin/openapi/blob/master/openapi/yaml/general.yaml#L305-L311

curl --request GET \
     --url https://api-sandbox.circle.com/v1/encryption/public \
     --header 'accept: application/json' \
     --header 'authorization: Bearer my-token'

{
  "data": {
    "keyId": "key1",
    "publicKey": "xxx"
  }
}

Note that the keyId is not uuid.