Pipeline: Use nightly trigger more frequently
Pipeline: Use nightly trigger more frequently

- Our rough heuristic was to use it for jobs that tend to take longer
  than an hour
- We think this will address resource concerns, compensating for the
  fact that long-running tasks are no longer gated by ICW

Signed-off-by: C.J. Jameson <ec1b14366327ff10b752f9848cd5b8311e885007@pivotal.io>

rvs/gpdb,xinzweb/gpdb,rvs/gpdb,xinzweb/gpdb,adam8157/gpdb,edespino/gpdb,adam8157/gpdb,cjcjameson/gpdb,lisakowen/gpdb,kaknikhil/gpdb,kaknikhil/gpdb,ashwinstar/gpdb,Chibin/gpdb,janebeckman/gpdb,yuanzhao/gpdb,janebeckman/gpdb,edespino/gpdb,yuanzhao/gpdb,yuanzhao/gpdb,Chibin/gpdb,cjcjameson/gpdb,adam8157/gpdb,Quikling/gpdb,edespino/gpdb,Quikling/gpdb,adam8157/gpdb,xinzweb/gpdb,rvs/gpdb,janebeckman/gpdb,adam8157/gpdb,edespino/gpdb,50wu/gpdb,Chibin/gpdb,lisakowen/gpdb,ashwinstar/gpdb,janebeckman/gpdb,50wu/gpdb,Quikling/gpdb,Chibin/gpdb,cjcjameson/gpdb,lisakowen/gpdb,Quikling/gpdb,rvs/gpdb,50wu/gpdb,jmcatamney/gpdb,Quikling/gpdb,edespino/gpdb,xinzweb/gpdb,50wu/gpdb,kaknikhil/gpdb,yuanzhao/gpdb,50wu/gpdb,adam8157/gpdb,greenplum-db/gpdb,cjcjameson/gpdb,ashwinstar/gpdb,jmcatamney/gpdb,janebeckman/gpdb,rvs/gpdb,kaknikhil/gpdb,kaknikhil/gpdb,cjcjameson/gpdb,Chibin/gpdb,janebeckman/gpdb,greenplum-db/gpdb,kaknikhil/gpdb,janebeckman/gpdb,Quikling/gpdb,adam8157/gpdb,greenplum-db/gpdb,greenplum-db/gpdb,greenplum-db/gpdb,kaknikhil/gpdb,adam8157/gpdb,Chibin/gpdb,jmcatamney/gpdb,cjcjameson/gpdb,ashwinstar/gpdb,cjcjameson/gpdb,Quikling/gpdb,xinzweb/gpdb,Chibin/gpdb,xinzweb/gpdb,greenplum-db/gpdb,cjcjameson/gpdb,edespino/gpdb,edespino/gpdb,kaknikhil/gpdb,50wu/gpdb,jmcatamney/gpdb,Chibin/gpdb,rvs/gpdb,ashwinstar/gpdb,cjcjameson/gpdb,edespino/gpdb,kaknikhil/gpdb,xinzweb/gpdb,50wu/gpdb,ashwinstar/gpdb,jmcatamney/gpdb,janebeckman/gpdb,janebeckman/gpdb,janebeckman/gpdb,Chibin/gpdb,yuanzhao/gpdb,Quikling/gpdb,greenplum-db/gpdb,ashwinstar/gpdb,rvs/gpdb,lisakowen/gpdb,jmcatamney/gpdb,lisakowen/gpdb,rvs/gpdb,yuanzhao/gpdb,jmcatamney/gpdb,greenplum-db/gpdb,Quikling/gpdb,xinzweb/gpdb,lisakowen/gpdb,jmcatamney/gpdb,kaknikhil/gpdb,edespino/gpdb,yuanzhao/gpdb,rvs/gpdb,Chibin/gpdb,yuanzhao/gpdb,lisakowen/gpdb,edespino/gpdb,ashwinstar/gpdb,Quikling/gpdb,cjcjameson/gpdb,rvs/gpdb,50wu/gpdb,yuanzhao/gpdb,lisakowen/gpdb,yuanzhao/gpdb