Type annotations for boto3 AppRunner

mypy-boto3-apprunner provides type annotations for the AWS AppRunner service client, compatible with boto3 version 1.42.3. It is generated by the `mypy-boto3-builder` and is part of a larger ecosystem providing comprehensive type hints for `boto3`, `botocore`, `aiobotocore`, and `aioboto3`. The project is actively maintained with regular updates to reflect changes in `boto3` and Python typing standards.