Reduce artifacts TTL to 60 days

$ du -d1 -h /var/jenkins_home
240+GB

We do not need all artifacts to be stored at jenkins.

Change-Id: I037d677b7ec448ba259707895919851fe4ed734a
diff --git a/jobs/templates/heat-bm-cicd-pike-contrail-sl.yml b/jobs/templates/heat-bm-cicd-pike-contrail-sl.yml
index 576936f..d8f618b 100644
--- a/jobs/templates/heat-bm-cicd-pike-contrail-sl.yml
+++ b/jobs/templates/heat-bm-cicd-pike-contrail-sl.yml
@@ -231,5 +231,6 @@
           refspec: ${{TCP_QA_REFS}}
           url: https://gerrit.mcp.mirantis.com/mcp/tcp-qa
       script-path: jobs/pipelines/deploy-cicd-and-run-tests.groovy
-    logrotate:
-      daysToKeep: 365
+    build-discarder:
+      days-to-keep: 365
+      artifact-days-to-keep: 60