explicitly run tests before continuing with the release

Change-Id: Ie31b91ad64f7e99e415a807d756a40c1f539b1dc
diff --git a/tools/build/onos-release b/tools/build/onos-release
index 774b0de..f8ff1c5 100755
--- a/tools/build/onos-release
+++ b/tools/build/onos-release
@@ -27,6 +27,7 @@
 
 # Build ONOS & deploy to staging repo using the release profile.
 onos-buck build onos
+onos-buck test
 time onos-buck-publish
 
 # Build ONOS docs