issues/27 Use cloud.googld.gpg from gcloud docs, migrate to kube comm…

[vironeen]

…unity repos

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Description

Fixes apt failures by using gcloud gpg from gcloud docs, migrating to kube community repos

Reasons

apt throwing GPG error for packages.cloud.google.com/apt repo. The gcloud docs specify where to get the gpg key file: https://cloud.google.com/sdk/docs/install-sdk#deb

apt throwing GPG error for apt.kubernetes.io. The kubernetes blog specifies how to migrate from this deprecated repo to the new kube community repos: https://kubernetes.io/blog/2023/08/15/pkgs-k8s-io-introduction/#how-to-migrate

https://github.com/CircleCI-Public/cimg-gcp/issues/27

Checklist

Please check through the following before opening your PR. Thank you!

• [X] I have made changes to the Dockerfile.template file only
• [X] I have not made any manual changes to automatically generated files
• [X] My PR follows best practices as described in the contributing guidelines
• [ ] (Optional, but recommended) My commits are signed

[joshhsoj1902]

@vironeen Thanks for your contribution! For simplicity and speed I ended up fixing this in https://github.com/CircleCI-Public/cimg-gcp/pull/29

Thanks surfacing that the google gpg key being used was also outdated.