Updated openstack/openstack
Project: openstack/requirements  9f383787413c9bf4b322bc1b5515ce113380f4ff

Bump websockify to >=0.6.0 which fixes bug causing zombie processes

Websockify 0.6.0 has been released for more than half an year, and
it fixes bug causing zombie processes on certain systems when using
multiprocessing.

Ref: https://github.com/kanaka/websockify/issues/95

Closes-Bug: #1048703

Change-Id: I5c13ee3504bd1542f936c34082d4bbdc498315ce