UPSTREAM: <carry>: Updating ose-csi-snapshot-controller-container ima…

…ge to be consistent with ART

Reconciling with https://github.com/openshift/ocp-build-data/tree/9dc2a375bf335e7e4e3d7e75abc5c3bdbb0c0e98/images/ose-csi-snapshot-controller.yml

.ci-operator.yaml

@@ -1,4 +1,4 @@
 build_root_image:
   name: release
   namespace: openshift
-  tag: rhel-8-release-golang-1.20-openshift-4.15
+  tag: rhel-9-release-golang-1.20-openshift-4.15

Dockerfile.snapshot-controller.openshift.rhel7

@@ -1,8 +1,8 @@
-FROM registry.ci.openshift.org/ocp/builder:rhel-8-golang-1.20-openshift-4.15 AS builder
+FROM registry.ci.openshift.org/ocp/builder:rhel-9-golang-1.20-openshift-4.15 AS builder
 WORKDIR /go/src/github.com/kubernetes-csi/external-snapshotter
 COPY . .
 RUN make build
 
-FROM registry.ci.openshift.org/ocp/4.15:base
+FROM registry.ci.openshift.org/ocp/4.15:base-rhel9
 COPY --from=builder /go/src/github.com/kubernetes-csi/external-snapshotter/bin/snapshot-controller /usr/bin/
 ENTRYPOINT ["/usr/bin/snapshot-controller"]