Bump kube-cross version

Sh4d1 · Sh4d1 · commit 06949dfffc6d · 2019-08-24T14:12:36.000+02:00
Signed-off-by: Patrik Cyvoct &lt;patrik@ptrk.io&gt;
diff --git a/builder/Dockerfile b/builder/Dockerfile
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM gcr.io/google_containers/kube-cross:v1.11.4-1
+FROM gcr.io/google_containers/kube-cross:v1.12.9-1
 LABEL maintainer="Andy Xie <andy.xning@gmail.com>"
 
 ENV GOPATH /gopath/
