Split COPY packages/[s-z]* /packages/package-stora... into separate layers with size less than 10GB #1941

docker history -H docker.elastic.co/package-registry/distribution:production has a layer that is 21.3GB in size.

Harbor is unable to load single layers larger than 10GB #15719 . If possible, please split packages[s-z]* into separate layers that is under 10GB each.

Thank you.