hack/update-deps.sh to vendor vbom.ml/util/sortorder
hack/update-deps.sh to vendor vbom.ml/util/sortorder

GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid