Orphan upload file blocks trow indefinitely

[awoimbee]

This issue is pretty rare but hard to diagnose and fix for end users

Infinite wait is here:

trow/src/registry/storage.rs

Line 108 in 7ef37fb

while tmp_location.exists() {

The issue is that there is no timeout for proxy download. And I don't think we can have a good timeout for the whole download, but we can add a timeout for "bytes received", eg if no bytes have been written in 10s, delete the file.