Merge pull request kubernetes#74767 from yuwenma/rebase-image

Rebase etcd-version-monitor base image to distroless.

Author: k8s-ci-robot

cluster/images/etcd-version-monitor/Dockerfile

@@ -12,8 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM scratch
-LABEL maintainer "Shyam JVS <[email protected]>"
+FROM gcr.io/distroless/static:latest
 
 COPY etcd-version-monitor /etcd-version-monitor