Updating ose-libvirt-machine-controllers images to be consistent with…

… ART

Reconciling with https://github.com/openshift/ocp-build-data/tree/2e5eba0108299087402c119ba0dc979a0a6c0bd1/images/ose-libvirt-machine-controllers.yml

.ci-operator.yaml

@@ -1,4 +1,4 @@
 build_root_image:
   name: release
   namespace: openshift
-  tag: rhel-8-release-golang-1.18-openshift-4.11
+  tag: rhel-8-release-golang-1.18-openshift-4.12

Dockerfile.rhel7

@@ -1,11 +1,11 @@
-FROM registry.ci.openshift.org/ocp/builder:rhel-8-golang-1.18-openshift-4.11 AS builder
+FROM registry.ci.openshift.org/ocp/builder:rhel-8-golang-1.18-openshift-4.12 AS builder
 RUN yum install -y libvirt-devel
 
 WORKDIR /go/src/github.com/openshift/cluster-api-provider-libvirt
 COPY . .
 RUN go build -o machine-controller-manager ./cmd/manager
 
-FROM registry.ci.openshift.org/ocp/4.11:base
+FROM registry.ci.openshift.org/ocp/4.12:base
 RUN INSTALL_PKGS=" \
       libvirt-libs openssh-clients genisoimage \
       " && \