Clean up FileUpload

[joshsmith]

@mjadczak I'm not sure why :business_logo was here; do you know?

[mjadczak]

https://stripe.com/docs/api#create_file_upload
The example response there has that as the return value, though it’s not listed in the actual doc. Not sure if it’s a valid value or not.

[joshsmith]

I actually also have "sigma_scheduled_query". So I'm going to just add atom in addition to the ones that are listed in the openapi spec.

[begedin]

👍