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: I85142b8be172147ea0f5c065bdb8a6d9dadfd8ae

zuul.d/layout.yaml

@@ -5,7 +5,7 @@
       - check-requirements
       - release-notes-jobs-python3
       - tripleo-standalone-scenarios-pipeline
-      - openstack-python3-ussuri-jobs
+      - openstack-python3-victoria-jobs
       - tripleo-standalone-multinode-ipa-pipeline
     check:
       jobs: