Updated pipelines for Voltha-2.8 release

Change-Id: I53ca9a5418a73299165bbc00ad655288734fd35e
diff --git a/jjb/verify/ofagent-py.yaml b/jjb/verify/ofagent-py.yaml
index 59a231a..333246b 100644
--- a/jjb/verify/ofagent-py.yaml
+++ b/jjb/verify/ofagent-py.yaml
@@ -22,7 +22,7 @@
           unit-test-keep-going: 'true'
           junit-allow-empty-results: true
       - 'voltha-patch-test':
-          pipeline-script: 'voltha/voltha-2.7/bbsim-tests.groovy'
+          pipeline-script: 'voltha/voltha-2.8/bbsim-tests.groovy'
 
 - job-group:
     name: 'publish-ofagent-py-jobs'