Bring rustls::Session into scope
Bring rustls::Session into scope

Methods like read_tls(), formerly implemented directly on ClientSession,
are now accessible via the Session trait, so we need it in scope.

nodakai/rustup.rs,inejge/rustup.rs,polonez/rustup.rs,Boddlnagg/rustup.rs,inejge/rustup.rs,theindigamer/rustup.rs,rust-lang/rustup,Boddlnagg/rustup.rs,rust-lang/rustup,nodakai/rustup.rs,inejge/rustup.rs,Boddlnagg/rustup.rs,polonez/rustup.rs,Boddlnagg/rustup.rs,polonez/rustup.rs,Boddlnagg/rustup.rs,theindigamer/rustup.rs,nodakai/rustup.rs,inejge/rustup.rs,nodakai/rustup.rs,polonez/rustup.rs,rust-lang/rustup,theindigamer/rustup.rs,rust-lang/rustup,theindigamer/rustup.rs,inejge/rustup.rs,theindigamer/rustup.rs,rust-lang/rustup,nodakai/rustup.rs,polonez/rustup.rs