Updating ose-insights-operator builder & base images to be consistent with ART

Reconciling with https://github.com/openshift/ocp-build-data/tree/ac81dd4ff0bd57c4e75058d25b40615b92948259/images/ose-insights-operator.yml

Author: jupierce

Dockerfile

@@ -1,9 +1,9 @@
-FROM registry.svc.ci.openshift.org/ocp/builder:rhel-8-golang-1.15-openshift-4.6 AS builder
+FROM registry.svc.ci.openshift.org/ocp/builder:rhel-8-golang-1.15-openshift-4.7 AS builder
 WORKDIR /go/src/github.com/openshift/insights-operator
 COPY . .
 RUN make build
 
-FROM registry.svc.ci.openshift.org/ocp/4.6:base
+FROM registry.svc.ci.openshift.org/ocp/4.7:base
 COPY --from=builder /go/src/github.com/openshift/insights-operator/bin/insights-operator /usr/bin/
 COPY config/pod.yaml /etc/insights-operator/server.yaml
 COPY manifests /manifests