CI: Auto update istio/operator image #10135

Job	Run time
build_minikube	14m 10s
lint	4m 21s
unit_test	2m 54s
functional_docker_ubuntu	8m 26s
functional_baremetal_ubuntu20_04	6m 42s
functional_docker_rootless_containerd_ubuntu	13m 12s
functional_docker_containerd_ubuntu	7m 30s
functional_podman_ubuntu	9m 39s
functional_virtualbox_macos	13m 1s
upload_all_reports	19s
	1h 20m 14s

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