v2.9.0

What's Changed

• Bump toitlang/pkg-publish from 1.4.0 to 1.5.0 by @dependabot in #99
• Bump minimal Toit version. by @floitsch in #101
• Support custom transformations for the abstract driver. by @floitsch in #100

Full Changelog: v2.8.0...v2.9.0