Adapted ref files to removal of GaudiAlgorithm in LHCb packers

Goes together with LHCb!3192 (merged), Boole!357 (merged), Gauss!763 (merged), Brunel!1166 (merged), Phys!978 (merged), Analysis!812 (merged), DaVinci!571 (merged), Noether!15 (merged) and Moore!968 (merged)

Built on top of !2509 (merged)