Update the GP7  PR pipeline for image resource
Update the GP7  PR pipeline for image resource

Authored-by: Ning Wu <f23156e47736361c73e19a7d95230a608b096ed2@vmware.com>

greenplum-db/gpdb,greenplum-db/gpdb,greenplum-db/gpdb,greenplum-db/gpdb,greenplum-db/gpdb,greenplum-db/gpdb,greenplum-db/gpdb,greenplum-db/gpdb