Increase ``neutron-tempest-plugin-vpnaas*`` timeout

Change-Id: Idfd77d2975dcf4764b88e5c63f9ce5eb25adaf9f
diff --git a/zuul.d/master_jobs.yaml b/zuul.d/master_jobs.yaml
index e28d5fa..eaad8d5 100644
--- a/zuul.d/master_jobs.yaml
+++ b/zuul.d/master_jobs.yaml
@@ -1440,7 +1440,7 @@
 - job:
     name: neutron-tempest-plugin-vpnaas
     parent: neutron-tempest-plugin-base
-    timeout: 4500
+    timeout: 5400
     required-projects:
       - openstack/neutron
       - openstack/neutron-vpnaas
@@ -1521,7 +1521,7 @@
 - job:
     name: neutron-tempest-plugin-vpnaas-ovn
     parent: neutron-tempest-plugin-base
-    timeout: 3900
+    timeout: 5400
     required-projects:
       - openstack/neutron
       - openstack/neutron-vpnaas