Upgrade alpine docker images to alpine 3.20

[edvasqueza]

Thank you for taking the time to help improve Corretto.

If your request concerns a security vulnerability then please report it by email to aws-security@amazon.com instead of here.
(You can find more information regarding security issues at https://aws.amazon.com/security/vulnerability-reporting/.)

If your proposal is specific to Corretto docker images,
then you are in the right place.
Please proceed with the following.

Is your feature request related to a problem?

No, it's an enhancement.

Describe a solution you would like

Alpine 3.20 has been released, it would be great to have Corretto docker images based on this new version so that downstream projects can benefit from the upgrades.

Describe alternatives you have considered

Maintain our own, doesn't benefit the community.

Additional context

Fixes busybox vulnerabilities and upgrades os packages.

[benty-amzn]

Thanks for contacting us about this. We should have a 3.20 Dockerfile available to build preview images soon, and the images should be available on Dockerhub and ECR after the next patch release on 2024-07-15 per https://github.com/corretto/corretto-docker?tab=readme-ov-file#types-of-images-provided