Bug#1049977: rust-hyper-rustls - please update to match new rust-tokio-rustls

[Jeremy Bícha]

In this case, britney noticed an increase in uninstallability which
would also have prevented the migration of rust-tokio-rustls to
Testing.

https://tracker.debian.org/pkg/rust-tokio-rustls

Thank you for the quick fix though!

Jeremy Bícha