Fix Helm Charts project RegExp

Change-Id: I870551f4fd1e97a21f0791ab8a3c5e7c370881dd
diff --git a/jjb/defaults.yaml b/jjb/defaults.yaml
index d7da8ca..2c8d9cc 100644
--- a/jjb/defaults.yaml
+++ b/jjb/defaults.yaml
@@ -74,7 +74,7 @@
     failure-email-address: 'cord-dev@opencord.org'
 
     # Projects containing helm-charts
-    helm-charts-projects-regexp: '^(?!aether)(.*helm-charts|cord-platform|seba)$'
+    helm-charts-projects-regexp: '^(?!aether|roc)(.*helm-charts|cord-platform|seba)$'
 
     # regexp for gerrit triggers
     # list of supported branches, for branch-regexp