Updating ose-agent-installer-orchestrator images to be consistent wit…

…h ART (#719)

Reconciling with https://github.com/openshift/ocp-build-data/tree/da6a5af1fa96762cc8410f09fc28c0457280f59a/images/ose-agent-installer-orchestrator.yml

Co-authored-by: AOS Automation Release Team <noreply@redhat.com>

Dockerfile.assisted-installer.ocp

@@ -1,4 +1,4 @@
-FROM registry.ci.openshift.org/ocp/builder:rhel-8-golang-1.20-openshift-4.14 AS builder
+FROM registry.ci.openshift.org/ocp/builder:rhel-8-golang-1.20-openshift-4.15 AS builder
 
 WORKDIR /go/src/github.com/openshift/assisted-installer
 ENV GOFLAGS="-mod=vendor"
@@ -7,7 +7,7 @@ COPY . .
 
 RUN make installer
 
-FROM registry.ci.openshift.org/ocp/4.14:base
+FROM registry.ci.openshift.org/ocp/4.15:base
 
 LABEL io.openshift.release.operator=true