Add Python3 victoria unit tests

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

See also the PTI in governance [1].

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

Change-Id: Ib5e28a43be2514a25c033c74250a875af0a3363f

zuul.d/project.yaml

@@ -1,6 +1,6 @@
 - project:
     templates:
-      - openstack-python3-ussuri-jobs
+      - openstack-python3-victoria-jobs
       - openstack-lower-constraints-jobs
       - openstack-cover-jobs
       - publish-openstack-docs-pti