Ansible launcher: set keep-hierarchy on log copying

We don't set keep-hierarchy in the log publisher because it only
publishes one file.  But we're tacking on the full ansible
directory to that publisher.  We want keep-hierarchy set so those
files don't just end up in the root.  Modify that in our job
publisher transform.

Change-Id: I188493168ff62f3711fe59fd93e8bd617864e391

zuul/launcher/ansiblelaunchserver.py

@@ -1026,6 +1026,7 @@ class NodeWorker(object):
             copy_console = False
             for scpfile in publisher['scp']['files']:
                 if scpfile.get('copy-console'):
+                    scpfile['keep-hierarchy'] = True
                     late_scpfiles.append(scpfile)
                     copy_console = True
                 else: