v0.9.0

What's Changed

• The dev-version counter is a tested pure function by @wmadden-electric in #239
• A release push also publishes a dev build by @wmadden-electric in #241
• fix(cli): resolve .js and extensionless relative imports to .ts under Node by @kristof-siket in #238
• chore(release): v0.9.0 by @kristof-siket in #243

Full Changelog: v0.8.0...v0.9.0