Merge pull request #705 from kishen-v/bump-centos

Bump CentOS image to stream 9

Author: k8s-ci-robot

build/base/Dockerfile

@@ -13,5 +13,5 @@
 # limitations under the License.
 
 # centos base image
-FROM quay.io/centos/centos:stream8 AS centos-base
+FROM quay.io/centos/centos:stream9 AS centos-base
 RUN yum install -y util-linux nfs-utils e2fsprogs xfsprogs ca-certificates && yum clean all && rm -rf /var/cache/yum