Updating ironic-rhcos-downloader-container image to be consistent wit…

…h ART

Reconciling with https://github.com/openshift/ocp-build-data/tree/e5df10e41b14c724468c8f78e2690f219279bfc4/images/ironic-rhcos-downloader.yml

Dockerfile.ocp

@@ -1,12 +1,12 @@
-FROM registry.ci.openshift.org/ocp/builder:rhel-9-golang-1.20-openshift-4.15 AS builder
+FROM registry.ci.openshift.org/ocp/builder:rhel-9-golang-1.20-openshift-4.16 AS builder
 
 WORKDIR /go/src/github.com/openshift/ironic-rhcos-downloader
 
 COPY clearproxy.go clearproxy.go
 COPY go.mod go.mod
 RUN go build -o /go/bin/clearproxy clearproxy.go
 
-FROM registry.ci.openshift.org/ocp/builder:rhel-9-base-openshift-4.15
+FROM registry.ci.openshift.org/ocp/builder:rhel-9-base-openshift-4.16
 COPY --from=builder /go/bin/clearproxy /usr/local/bin/clearproxy
 
 RUN dnf upgrade -y \