LFS258 Labs are not portable ....

Hi there,

It would be nice to use compatible/supported containers images for both amd64 and arm64 architectures. Which is not really the case.

For instance, I'm not able to work/test the review2.yaml from the LAB_A.3.pdf
as the goproxy is for and only for linux/amd64.

My infra is based on a Mac M4 running Multipass and ubuntu instances for the k8s cluster...

Same for the next review3.yaml which use vish/stress only for amd64 ....

I might discover other incompatibilities for my platform in the next review files :-(

Kind regards,
Aristide