Migrate to use aws-sdk-go-v2

[avanish23]

Is this a bug fix or adding new feature?
This PR migrates to aws-sdk-go-v2
Context: https://aws.amazon.com/blogs/developer/announcing-end-of-support-for-aws-sdk-for-go-v1-on-july-31-2025/
Migration guide: https://aws.github.io/aws-sdk-go-v2/docs/migrating/

Basically maintenance mode on July 31, 2024 and reach end-of-support on July 31, 2025. The SDK will not
receive API updates for new or existing services, or be updated to support new regions.

Side note: Most of the changes are present in the /vendors directory as the aws-sdk-go-v2 files have gotten added, which don't need a really need a review, so the review process can be limited to 10 files

PR for issue #1421

What is this PR about? / Why do we need it?

What testing is done?
make test has passed succesfully

[linux-foundation-easycla]

• ✅ login: avanish23 / name: Avanish V Patil (ad664dd, 9d6093c, a56a074)
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[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: avanish23
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[k8s-ci-robot]

Hi @avanish23. Thanks for your PR.

I'm waiting for a kubernetes-sigs member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[avanish23]

/easycla