pipeline: extract pre-run test setup to it's own separate task.
pipeline: extract pre-run test setup to it's own separate task.

Ideally, pretest setup should be explicit for their own jobs, so we
extracted out the setup to be more modularized.

Any tests should be able to use this pattern instead of having to add it
in run_tinc.yml or run_behave.yml

Signed-off-by: Marbin Tan <fe9db60e23a06449b90b19d66b721708068089ad@pivotal.io>

adam8157/gpdb,Chibin/gpdb,50wu/gpdb,Chibin/gpdb,xinzweb/gpdb,jmcatamney/gpdb,edespino/gpdb,lisakowen/gpdb,Chibin/gpdb,edespino/gpdb,adam8157/gpdb,edespino/gpdb,ashwinstar/gpdb,edespino/gpdb,edespino/gpdb,jmcatamney/gpdb,Chibin/gpdb,xinzweb/gpdb,edespino/gpdb,jmcatamney/gpdb,jmcatamney/gpdb,xinzweb/gpdb,xinzweb/gpdb,ashwinstar/gpdb,yuanzhao/gpdb,greenplum-db/gpdb,50wu/gpdb,adam8157/gpdb,yuanzhao/gpdb,greenplum-db/gpdb,lisakowen/gpdb,lisakowen/gpdb,Chibin/gpdb,adam8157/gpdb,50wu/gpdb,adam8157/gpdb,greenplum-db/gpdb,yuanzhao/gpdb,xinzweb/gpdb,jmcatamney/gpdb,yuanzhao/gpdb,edespino/gpdb,ashwinstar/gpdb,greenplum-db/gpdb,yuanzhao/gpdb,lisakowen/gpdb,Chibin/gpdb,jmcatamney/gpdb,greenplum-db/gpdb,Chibin/gpdb,50wu/gpdb,ashwinstar/gpdb,xinzweb/gpdb,50wu/gpdb,greenplum-db/gpdb,lisakowen/gpdb,xinzweb/gpdb,yuanzhao/gpdb,edespino/gpdb,adam8157/gpdb,Chibin/gpdb,ashwinstar/gpdb,lisakowen/gpdb,yuanzhao/gpdb,adam8157/gpdb,yuanzhao/gpdb,50wu/gpdb,greenplum-db/gpdb,Chibin/gpdb,edespino/gpdb,lisakowen/gpdb,50wu/gpdb,lisakowen/gpdb,50wu/gpdb,Chibin/gpdb,edespino/gpdb,greenplum-db/gpdb,xinzweb/gpdb,jmcatamney/gpdb,yuanzhao/gpdb,ashwinstar/gpdb,ashwinstar/gpdb,yuanzhao/gpdb,ashwinstar/gpdb,jmcatamney/gpdb,adam8157/gpdb