CI: Fix typo for override-checkout and branch_override

Change-Id: I5bab1b044af2fd7177472b149116561dbdb79ae9
diff --git a/zuul.d/victoria_jobs.yaml b/zuul.d/victoria_jobs.yaml
index 832d242..d648aa8 100644
--- a/zuul.d/victoria_jobs.yaml
+++ b/zuul.d/victoria_jobs.yaml
@@ -142,9 +142,9 @@
 - job:
     name: neutron-tempest-plugin-scenario-openvswitch-iptables_hybrid-victoria
     parent: neutron-tempest-plugin-scenario-openvswitch-iptables_hybrid
-    override-checkout: stable-victoria
+    override-checkout: stable/victoria
     vars:
-      branch_override: stable-victoria
+      branch_override: stable/victoria
       network_api_extensions: *api_extensions
       network_available_features: *available_features
       devstack_localrc: