Merge pull request #684 from justaugustus/kube-cross

build-image: Promote kube-cross v1.13.9-2 image

Author: k8s-ci-robot

k8s.gcr.io/images/k8s-staging-build-image/images.yaml

@@ -6,11 +6,9 @@
     - v1.13.9-1
     sha256:8d3fd0e3e126b085d4475f1954cc394a2ebea908f370095eb7463d2b1f4dbfdd:
     - v1.12.17-1
+    sha256:95366bfc21a10198b6f0ece3e0dcac27d9b8e39fc69239aa62d76b4a2b5ca261:
+    - v1.13.9-2
     sha256:97e77164ddc1f9ab56bcbab3e2895b882097b1eabd820497e894f41c0e4908fe:
     - v1.12.12-1
     sha256:df0a50772214025040ea31144a731b5fa76944cbfc9c87db05af98e4aa39aa7f:
     - v1.13.6-1
-- name: kube-cross-amd64
-  dmap:
-    sha256:60e119bc59d8e6c77ddf159af0a682d0634249e3baca69d5be2972d00942ff51:
-    - v1.13.9-1