update timers on the jobs

Change-Id: I2a445ea149c911265d7424b938cdba97611d85d0
diff --git a/jjb/cord-test/nightly-build-pipeline.yaml b/jjb/cord-test/nightly-build-pipeline.yaml
index 3eb0d5f..eebc39d 100644
--- a/jjb/cord-test/nightly-build-pipeline.yaml
+++ b/jjb/cord-test/nightly-build-pipeline.yaml
@@ -880,7 +880,7 @@
     triggers:
       - timed: |
                  TZ=America/Los_Angeles
-                 H {time} * * *
+                 H H/3 * * *
 
 - job-template:
     name: 'build_{config-pod}_voltha_{release}_test'