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: Ie14399f11295e385f7dbbaeecbcb26309a5170a5

zuul.d/project.yaml

@@ -7,8 +7,8 @@
       - neutron-tempest-plugin-jobs
       - openstack-cover-jobs
       - openstack-lower-constraints-jobs
-      - openstack-python3-xena-jobs
-      - openstack-python3-xena-jobs-arm64
+      - openstack-python3-yoga-jobs
+      - openstack-python3-yoga-jobs-arm64
       - publish-openstack-docs-pti
       - periodic-stable-jobs
       - check-requirements
@@ -43,9 +43,9 @@
         # networking-ovn-tripleo-ci-centos-7-containers-multinode.
         # If you need any support to debug these jobs in case of
         # failures, please reach us on #tripleo IRC channel.
-        - openstack-tox-py36:  # from openstack-python3-xena-jobs template
+        - openstack-tox-py36:  # from openstack-python3-yoga-jobs template
             timeout: 3600
-        - openstack-tox-py38:  # from openstack-python3-xena-jobs template
+        - openstack-tox-py38:  # from openstack-python3-yoga-jobs template
             timeout: 3600
         - openstack-tox-lower-constraints:  # from openstack-tox-lower-constraints template
             timeout: 3600
@@ -66,7 +66,7 @@
         - neutron-ovn-tempest-ipv6-only
         - neutron-ovn-tempest-ovs-release
         - neutron-ovn-tempest-ovs-release-ipv6-only
-        - openstack-tox-py36:  # from openstack-python3-xena-jobs template
+        - openstack-tox-py36:  # from openstack-python3-yoga-jobs template
             timeout: 3600
         - openstack-tox-lower-constraints:  # from openstack-tox-lower-constraints template
             timeout: 3600