use api token

hack/install_kubebuilder.sh

@@ -46,7 +46,7 @@ command_exists curl
 command_exists tar
 
 if [ "x${KUBEBUILDER_VERSION}" = "x" ] ; then
-  KUBEBUILDER_VERSION=$(curl -L -s https://api.github.com/repos/kubernetes-sigs/kubebuilder/releases/latest | \
+  KUBEBUILDER_VERSION=$(curl -L -s https://api.github.com/repos/kubernetes-sigs/kubebuilder/releases/latest?access_token=$TOKEN | \
                   grep tag_name | sed "s/ *\"tag_name\": *\"\\(.*\\)\",*/\\1/")
   if [ -z "$KUBEBUILDER_VERSION" ]; then
     echo "\nUnable to fetch the latest version tag. This may be due to network access problem"