This patch add connection local for above mentioned task as
kolla-ansible can be executed in docker container as in
my case.

When there is no connection: local, ansible is trying to connect
to localhost via ssh where specified python script is not available.

After connection: local everything is working as expected as file
is found inside container

Closes-Bug: #2004224

Change-Id: I219a958b4f101efb71a2935e6d910dae5c65f0be