Add tagging jobs to create git tags on trellis repos

Fix email address used to push tags

Change-Id: I2be5361ee66d3a589e4c1f8f0f39c0e0b19e6f26
diff --git a/jjb/repos/tost-onos.yaml b/jjb/repos/tost-onos.yaml
index 9ee0a4c..3475736 100644
--- a/jjb/repos/tost-onos.yaml
+++ b/jjb/repos/tost-onos.yaml
@@ -9,6 +9,9 @@
       - 'verify-tost-onos-jobs':
           branch-regexp: '{supported-branches-regexp}'
 
+      - 'publish-tost-onos-jobs':
+          branch-regexp: '{supported-branches-regexp}'
+
 - job-group:
     name: 'verify-tost-onos-jobs'
     jobs:
@@ -18,3 +21,8 @@
       - 'make-test':
           make-test-targets: 'docker-build'
           junit-allow-empty-results: true
+
+- job-group:
+    name: 'publish-tost-onos-jobs'
+    jobs:
+      - 'version-tag'