[cpack] Embed arch in macos binary package file names:
[cpack] Embed arch in macos binary package file names:

Now that we need to distinguish x86_64 from arm. Also "macOS" version is not
necessarily "X" anymore.

root-mirror/root,olifre/root,olifre/root,olifre/root,root-mirror/root,root-mirror/root,root-mirror/root,root-mirror/root,olifre/root,olifre/root,olifre/root,olifre/root,olifre/root,root-mirror/root,root-mirror/root,olifre/root,root-mirror/root,olifre/root,root-mirror/root,root-mirror/root,root-mirror/root,olifre/root