Updating ose-cluster-kube-apiserver-operator-container image to be consistent with ART for 4.12

Reconciling with https://github.com/openshift/ocp-build-data/tree/3b13f15bee7816b83ffd09d59a64dea683caf1e4/images/ose-cluster-kube-apiserver-operator.yml

Author: AOS Automation Release Team

.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-1.19-openshift-4.12

Dockerfile.rhel7

@@ -1,10 +1,10 @@
-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-1.19-openshift-4.12 AS builder
 WORKDIR /go/src/github.com/openshift/cluster-kube-apiserver-operator
 COPY . .
 ENV GO_PACKAGE github.com/openshift/cluster-kube-apiserver-operator
 RUN make build --warn-undefined-variables
 
-FROM registry.ci.openshift.org/ocp/4.11:base
+FROM registry.ci.openshift.org/ocp/4.12:base
 COPY --from=builder /go/src/github.com/openshift/cluster-kube-apiserver-operator/bindata/bootkube/bootstrap-manifests /usr/share/bootkube/manifests/bootstrap-manifests/
 COPY --from=builder /go/src/github.com/openshift/cluster-kube-apiserver-operator/bindata/bootkube/config /usr/share/bootkube/manifests/config/
 COPY --from=builder /go/src/github.com/openshift/cluster-kube-apiserver-operator/bindata/bootkube/manifests /usr/share/bootkube/manifests/manifests/