[2.8] [console|proxy] update image references contained with examples (2.7 -> 2.8 & kafka-37 ->kafka-38)

[k-wall]

grep -r registry.redhat examples

./proxy/record-encryption/cluster-ip/README.md:   oc run -n kafka-proxy -qi create-topic --image=registry.redhat.io/amq-streams/kafka-37-rhel9:2.7.0 --rm=true --restart=Never -- bin/kafka-topics.sh --bootstrap-server proxy-service:9092 --create -topic trades
./proxy/record-encryption/cluster-ip/README.md:   echo 'IBM:100\nAPPLE:99' | oc run -n kafka-proxy -qi proxy-producer --image=registry.redhat.io/amq-streams/kafka-37-rhel9:2.7.0 --rm=true --restart=Never -- bin/kafka-console-producer.sh --bootstrap-server proxy-service:9092 --topic trades
./proxy/record-encryption/cluster-ip/README.md:    oc run -n kafka cluster-consumer -qi --image=registry.redhat.io/amq-streams/kafka-37-rhel9:2.7.0 --rm=true --restart=Never -- ./bin/kafka-console-consumer.sh  --bootstrap-server my-cluster-kafka-bootstrap:9092 --topic trades --from-beginning --timeout-ms 10000
./proxy/record-encryption/cluster-ip/README.md:    oc run -n kafka-proxy proxy-consumer -qi --image=registry.redhat.io/amq-streams/kafka-37-rhel9:2.7.0 --rm=true --restart=Never -- ./bin/kafka-console-consumer.sh  --bootstrap-server proxy-service:9092 --topic trades --from-beginning --timeout-ms 10000
./proxy/record-encryption/load-balancer/README.md:    oc run -n kafka cluster-consumer -qi --image=registry.redhat.io/amq-streams/kafka-37-rhel9:2.7.0 --rm=true --restart=Never -- ./bin/kafka-console-consumer.sh  --bootstrap-server my-cluster-kafka-bootstrap:9092 --topic trades --from-beginning --timeout-ms 10000
./proxy/record-encryption/base/proxy/proxy-deployment.yaml:        image: registry.redhat.io/amq-streams/proxy-rhel9:2.7
./console/resources/console/console.deployment.yaml:        image: registry.redhat.io/amq-streams/console-api-rhel9:2.7
./console/resources/console/console.deployment.yaml:        image: registry.redhat.io/amq-streams/console-ui-rhel9:2.7

[k-wall]

@SamBarker FYI