Migrate AWS SDK for JavaScript v2 APIs to v3

[trivikr]

Is your feature request related to a problem? Please describe.

AWS SDK for JavaScript v2 will enter maintenance mode on September 8, 2024 and reach end-of-support on September 8, 2025. For more information, check blog post at https://a.co/cUPnyil

The busy-engineers-document-bucket makes calls using AWS SDK for JavaScript v2 at many places
https://github.com/search?q=repo%3Aaws-samples%2Fbusy-engineers-document-bucket%20%22aws-sdk%22&type=code

Describe the solution you'd like

Migrate AWS SDK for JavaScript v2 APIs to v3.