contint: soften python-voluptuous version requirement

Alexandros has build version of 0.8.2-1wmf1 of python-voluptuous so we
can upgrade Zuul.  Remove the version constraint in puppet so we can get
0.8.2-1wm1 installed.

Change-Id: I6354f0385917cf5c4847e74e7ee734a01a56cf18
Merge "contint: soften python-voluptuous version requirement" into production