vendor: bump sigs.k8s.io/kustomize/kustomize/v5 from 5.4.2 to 5.4.3 in /tools in the k8s-dependencies group

vendor: bump sigs.k8s.io/kustomize/kustomize/v5 from 5.4.2 to 5.4.3 in /tools in the k8s-dependencies group #735