Describe the feature you'd like to request

See: #1993

There is a timeout hardcoded here:

This causes timeouts for assets that take more than 20s to upload (like over my slow home connection to a remote)

Note: This used to be a timeout of 60 seconds but was changed to 20 in this PR: #545

Describe the solution you'd like

The timeout should be configurable

Describe alternatives you've considered

I've tried different implementations but ultimately its because my home internet connection is not fast enough to upload the asset in under 20 seconds