CNI: Update cilium from v1.15.6 to v1.15.7 #11905

Job	Run time
build_minikube	6m 42s
build_minikube_test_binaries	3m 23s
lint	2m 45s
unit_test	1m 43s
functional_podman_ubuntu	6m 17s
functional_docker_containerd_ubuntu	6m 46s
functional_baremetal_ubuntu22_04	5m 15s
functional_docker_rootless_containerd_ubuntu	8m 9s
functional_docker_ubuntu	6m 19s
functional_virtualbox_macos	36m 37s
upload_all_reports	7s
	1h 24m 3s

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