libblkio 1.5.0 release This release updates cargo dependencies for building downstream Debian and Fedora packages. It contains no API changes. Cargo: - rustix has been updated to 0.38 to enable building on current Linux distros. - The minimum supported Rust version (MSRV) has increased from 1.56 to 1.63 due to the rustix update. This is not a breaking change in semver, so bump the version minor number (rationale: https://github.com/rust-lang/api-guidelines/discussions/231).