Update skopeo to 1.2.3
Changelog can be found here
Tested through buildah and podman
Fix skopeo source version to have correct version 1.2.3 like it should
This is being installed into /, so should be fixed.
All of this is being thrown into /usr/local, should be /usr
Hint, set PREFIX to /usr because this commit changed how it worked
Fixed all the installation paths so that everything goes into correct folder