v1.3.0

What's Changed

• Bump github.com/gabriel-vasile/mimetype from 1.3.1 to 1.4.0 by @dependabot in #233
• Adds extra buildpack descriptors to BuildpackInfo by @ryanmoran in #236
• Only prunes layer TOML files when api < 0.6 by @ryanmoran in #237
• Adds the PR semver labeling workflows by @sophiewigmore in #239
• Moves layer types to table by @ryanmoran in #238

Full Changelog: v1.2.0...v1.3.0