hongye-sun: upgrade backend image versions

JobBuild
1918
08-21 21:50
kubeflow-pipeline-e2e-test 1164640530227793921 1164614464834637824 1164563627592650752 1164361299140808709 1164293737598160896
kubeflow-pipeline-sample-test 1164662818755055618 1164640530227793920 1164614464830443520 1164563627588456449 1164361299140808707 1164293737593966593
kubeflow-pipeline-upgrade-test 1164662818755055617 1164640530231988224 1164614464826249216 1164563627588456448 1164361299140808708 1164293737593966592