Merge pull request #4263 from askulkarni2/chore/deprecate-kubernetes-release-url

Use dl.k8s.io instead of kubernetes-release bucket

Author: k8s-ci-robot

hack/ensure-kubectl.sh

@@ -33,7 +33,7 @@ verify_kubectl_version() {
         mkdir -p "${GOPATH_BIN}"
       fi
       echo 'kubectl not found, installing'
-      curl -sLo "${GOPATH_BIN}/kubectl" "https://storage.googleapis.com/kubernetes-release/release/${MINIMUM_KUBECTL_VERSION}/bin/${GOOS}/${GOARCH}/kubectl"
+      curl -sLo "${GOPATH_BIN}/kubectl" "https://dl.k8s.io/release/${MINIMUM_KUBECTL_VERSION}/bin/${GOOS}/${GOARCH}/kubectl"
       chmod +x "${GOPATH_BIN}/kubectl"
     else
       echo "Missing required binary in path: kubectl"