Add Python3 yoga unit tests
Add Python3 yoga unit tests

This is an automatically generated patch to ensure unit testing
is in place for all the of the tested runtimes for yoga.

See also the PTI in governance [1].

[1]: https://governance.openstack.org/tc/reference/project-testing-interface.html

Change-Id: I86b831874b9c115aabf052c3becf970be38ca34b

openstack/murano-agent,openstack/murano-agent,openstack/murano-agent,openstack/murano-agent