update claimName (#959)
update claimName (#959)

changed claimName from pr-primary-pgdata to pr-replica-pgdata as it was failing during GKE testing.
CrunchyData/crunchy-containers,the1forte/crunchy-containers,the1forte/crunchy-containers,CrunchyData/crunchy-containers,the1forte/crunchy-containers,CrunchyData/crunchy-containers