Don't cancel a mpb.Progress using a context
Don't cancel a mpb.Progress using a context

The context passed to mpb.NewWithContext immediately terminates
the progress bar service goroutines; the result is that any pending
progress updates, notably final renders that mark a progress bar
as finished, never happen, and the user may see unfinished progress.

So, don't pass a context to the mpb.Progress at all; instead,
rely on every single progress bar use ensuring it is terminated using
bar.Abort(). The previous commit implemented that for all progress bars.

Signed-off-by: Miloslav Trmač <9c008e38982a5397deb855345fb164f0558459ae@redhat.com>

containers/image,containers/image