Rust UEFI Firmware Targets Promoted To Tier-2 Status

Back in September was a proposal to promote Rust's UEFI firmware targets to tier-2. With the current tier-3 designation the Rust UEFI targets they currently lack continuous integration (CI) guarantees and official builds in the Rust release channels, which means users wanting to use Rust for targeting the UEFI binaries need to rely on nightly/unstable compiler builds...