Add credential for release job

Change-Id: I8481ed104d62efe84089cdb7cfb1d2fbd2578219
diff --git a/jjb/onos-app-release.yaml b/jjb/onos-app-release.yaml
index ee3acc4..43e58d0 100644
--- a/jjb/onos-app-release.yaml
+++ b/jjb/onos-app-release.yaml
@@ -22,6 +22,11 @@
           build-days-to-keep: '{build-days-to-keep}'
           artifact-num-to-keep: '{artifact-num-to-keep}'
 
+    wrappers:
+      - ssh-agent-credentials:
+          users:
+              - '9eade54b-3246-4b41-9a35-d8ba39a0285c'
+
     parameters:
       - string:
          name: app