Enable 10 minutes build-timeout for push-upstream jobs

Change-Id: Id905205f1b95705230ac8c88da11a54e317ee05b
diff --git a/jjb/global/global-templates-push-upstream.yaml b/jjb/global/global-templates-push-upstream.yaml
index cde2a83..7b5612e 100644
--- a/jjb/global/global-templates-push-upstream.yaml
+++ b/jjb/global/global-templates-push-upstream.yaml
@@ -25,6 +25,10 @@
           branch: '{branch}'
           files: '**'
 
+    wrappers:
+      - build-timeout:
+          timeout: 10
+
     builders:
       - shell:
           !include-raw-escape: ./push-upstream-jobs.sh