Shorten progress bars to 20 characters

They were needlessly long and this limited the message size.

client-cli/pvc/cli/waiters.py

@@ -107,7 +107,7 @@ def wait_for_celery_task(CLI_CONFIG, task_detail, start_late=False):
 
     # Start following the task state, updating progress as we go
     total_task = task_status.get("total")
-    with progressbar(length=total_task, show_eta=False) as bar:
+    with progressbar(length=total_task, width=20, show_eta=False) as bar:
         last_task = 0
         maxlen = 21
         echo(

client-cli/pvc/lib/common.py

@@ -83,7 +83,7 @@ class UploadProgressBar(object):
         else:
             self.end_suffix = ""
 
-        self.bar = click.progressbar(length=self.length, show_eta=True)
+        self.bar = click.progressbar(length=self.length, width=20, show_eta=True)
 
     def update(self, monitor):
         bytes_cur = monitor.bytes_read