v0.6.0

Rollback GraphViz to v0.2.0, fix for Swift 6.

v0.5.0 | Wabi Rebirth

Changes to allow this old and outdated Swift Package to continue to work in the year 2024 with later versions of Swift 5.10+.

• Requiring a minimum macOS version of 10.15.
• Removing superfluous warnings about using the old deprecated @_functionBuilder attribute by replacing all usage of this attribute with the proper @resultBuilder.
• Silence warnings for retroactive conformances of Swift.KeyValuePairs by fully-qualifying all types in its extensions.