Passes playbook to the validation action as a list
Passes playbook to the validation action as a list

Recent removal of the 'validations_libs.utils.convert_data'
function, implemented by the Ief9459e914ea73fbd59a85c07a55c26078e0126a,
resulted in a change of accepted argument types of
the 'validations_libs.validation_actions' methods.

This patch turns the passed argument from string into a list.

Closes-bug: #1936465

Signed-off-by: Jiri Podivin <c67e25c244967c2b045125ef84e6068d21a6616f@redhat.com>
Change-Id: I4e96f5a0e013de5abcde837dad3c5f9d5228dd4c

openstack/python-tripleoclient