Type annotations for boto3 WellArchitected

This library provides static type annotations for the AWS Well-Architected service, enabling `mypy` to perform static type checking on `boto3` code. It ensures type safety and enhances developer experience with improved autocompletion. The current version is 1.42.3, and it follows the `mypy-boto3-builder` release cadence, which is typically frequent due to `boto3` updates.