Bump centos version up to 9-stream

This change updates the version of centos that we currently
contain in the repository to 9-stream.

Change-Id: Ia4f4d6eaee6d9e272f5276ce961691fa980cd957

bindep.txt

@@ -106,7 +106,7 @@ multipath-tools                      [platform:dpkg platform:suse (cinder purest
 mysql                                [platform:rpm placement]
 mysql-client                         [platform:dpkg placement]
 nginx                                [nginx]
-# latest nss-devel breaks python-nss on centos:8
+# latest nss-devel breaks python-nss on centos:9
 nss-devel-3.53.1-17.el8_3            [platform:rpm !platform:suse requirements]
 nss-util                             [platform:rpm !platform:suse requirements]
 open-iscsi                           [platform:dpkg platform:suse (cinder purestorage) (nova purestorage)]

dockerfiles/centos/CentOS.repo

@@ -28,7 +28,7 @@ baseurl=http://%%PACKAGE_MIRROR%%/centos/$releasever/cloud/$basearch/openstack-v
 gpgcheck=1
 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-Cloud
 
-[centos-8-stream-appstream]
+[centos-9-stream-appstream]
 includepkgs=nss*
 name=CentOS Linux $releasever stream - AppStream
 baseurl=http://%%PACKAGE_MIRROR%%/$contentdir/$releasever-stream/AppStream/$basearch/os/

dockerfiles/centos/Dockerfile

@@ -1,4 +1,4 @@
-ARG FROM=centos:8
+ARG FROM=centos:9-stream
 FROM ${FROM}
 
 ARG PACKAGE_MIRROR=mirror.centos.org

playbooks/vars.yaml

@@ -20,7 +20,7 @@ loci_src_dir: "src/opendev.org/openstack/loci"
 
 distros:
   # - name: centos
-  #   image: centos:8
+  #   image: centos:9-stream
   #   release: master
   #   buildargs:
   #     base: