Updating ose-ovn-kubernetes-base-container image to be consistent with ART for 4.20

Reconciling with https://github.com/openshift/ocp-build-data/tree/dfb5c7d531490cfdc61a3b88bc533702b9624997/images/ovn-kubernetes-base.yml

Author: AOS Automation Release Team

.ci-operator.yaml

@@ -1,4 +1,4 @@
 build_root_image:
   name: release
   namespace: openshift
-  tag: rhel-9-release-golang-1.23-openshift-4.19
+  tag: rhel-9-release-golang-1.24-openshift-4.20

Dockerfile.base

@@ -5,7 +5,7 @@
 # The standard name for this image is ovn-kubernetes-base
 
 # build base image shared by both OpenShift and MicroShift
-FROM registry.ci.openshift.org/ocp/4.19:base-rhel9
+FROM registry.ci.openshift.org/ocp/4.20:base-rhel9
 
 # install selinux-policy first to avoid a race
 RUN dnf --setopt=retries=2 --setopt=timeout=2 install -y --nodocs \