make util-stream documented in smithy-typescript to appear on AWS SDK JSv3 api docs site

[kuhe]

Describe the issue

https://github.com/awslabs/smithy-typescript/blob/main/packages/util-stream/src/blob/Uint8ArrayBlobAdapter.ts

is annotated as public but does not appear in API docs because the package is not included in the api docs extractor

this was discovered in: #5062

Links

https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/index.html

[github-actions]

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