Revert "profiles/workstation: Use IU rsync mirror"

This reverts commit 27ee7784335d8d741f561c961ea9b857e2828d3b.
Revert "Revert "profiles/workstation: Use IU rsync mirror""

This reverts commit a85f2b757be995a2d417e36ae1d1d240a8fdbc5e.