v1.8.0

What's Changed

• CI: Use maintained GitHub Action for Rust dtolnay/rust-toolchain by @olleolleolle in #23
• .ruby-version: Use 3.4.5 by @olleolleolle in #24
• README.md: Remove broken CodeClimate badge by @olleolleolle in #22
• MRML 5 by @ushi-as in #25
• Bump actions/checkout from 4 to 5 by @dependabot[bot] in #26

Full Changelog: v1.7.0...v1.8.0