project: handle verbose with initial clone bundle

If we're not in --verbose mode with repo sync, then omit the
per-project clone bundle progress bar.

Bug: https://crbug.com/gerrit/11293
Change-Id: Ibdf3be86d35fcbccbf6788c192189f38c577e6e9
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/255854
Tested-by: Mike Frysinger <vapier@google.com>
Reviewed-by: David Pursehouse <dpursehouse@collab.net>