Add full path to python to avoid issues when default python is set to something else

Author: arnaudfroidmont

playbooks/roles/cluster-cli/files/cluster

@@ -1,4 +1,4 @@
-#!/usr/bin/env python3
+#!/usr/bin/env /usr/bin/python3
 import ldap3
 from ldap3 import MODIFY_ADD
 import click