Switch testing to Victoria testing runtime

Updating the testing template from ussuri to victoria
testing runtime
- https://governance.openstack.org/tc/reference/runtimes/victoria.html

Change-Id: If964909a73a52836e3adbb7b695f1c7322b81830
diff --git a/.zuul.yaml b/.zuul.yaml
index 09a5897..ec6b5fc 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -607,7 +607,7 @@
       - check-requirements
       - integrated-gate-py3
       - openstack-cover-jobs
-      - openstack-python3-ussuri-jobs
+      - openstack-python3-victoria-jobs
       - publish-openstack-docs-pti
       - release-notes-jobs-python3
     check: