CNI: Update cilium from v1.15.3 to v1.15.5 #11576

Job	Run time
lint	2m 20s
unit_test	1m 37s
build_minikube_test_binaries	3m 17s
build_minikube	6m 45s
functional_docker_ubuntu	6m 9s
functional_podman_ubuntu	7m 13s
functional_docker_containerd_ubuntu	6m 0s
functional_baremetal_ubuntu20_04	5m 16s
functional_docker_rootless_containerd_ubuntu	8m 1s
functional_virtualbox_macos	36m 58s
upload_all_reports	6s
	1h 23m 42s

Provide feedback