v1.22.0

Added

• Adds code generation for the Dart programming language.Credit to @ricardoboss, @joanne-ter-maat, @Kees-Schotanus, @andreaTP, @baywet#3745
• Added new linux arm64 binary builds for Kiota CLI

Changed

• Fixed a bug in generation when a referenced schema in an allOf was a primitive #5701.
• Fixed a bug where inherited error models would be missing interface declarations. #5888
• Fixed a bug where oneOf/anyOf schemas with single references to inheritance or intersections would be missing properties. [#5921](#5921