archival: construct progress helper through ui.makeprogress()

No idea why we didn't.

mercurial/archival.py

@@ -327,7 +327,7 b' def archive(repo, dest, node, kind, deco'
         files.sort()
         scmutil.prefetchfiles(repo, [ctx.rev()],
                               scmutil.matchfiles(repo, files))
-        progress = scmutil.progress(repo.ui, _('archiving'), unit=_('files'),
+        progress = repo.ui.makeprogress(_('archiving'), unit=_('files'),
                                     total=total)
         progress.update(0)
         for f in files: