switch to aws-sdk-go-v2 as v1 is going away

[dims]

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.

[k8s-triage-robot]

The Kubernetes project currently lacks enough contributors to adequately respond to all issues.

This bot triages un-triaged issues according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
• After 30d of inactivity since lifecycle/rotten was applied, the issue is closed

You can:

• Mark this issue as fresh with /remove-lifecycle stale
• Close this issue with /close
• Offer to help out with Issue Triage

Please send feedback to sig-contributor-experience at kubernetes/community.

/lifecycle stale

[BenTheElder]

I think we did this?
/remove-lifecycle stale

[dims]

we missed a spot:

https://github.com/kubernetes-sigs/boskos/blob/master/aws-janitor/resources/clean.go#L23