Registry does not work on ipv6

[jellebens]

When a trying to deploy registry using operator on a kubernetes server that only has ipv6 to its disposition registry fails to start

issue is located here:
class: https://github.com/Apicurio/apicurio-registry/blob/5ceb8a89ae772172826b150b87ff9f1bf87263ec/storage/streams/src/main/java/io/apicurio/registry/streams/StreamsRegistryConfiguration.java

public HostInfo storageLocalHost(StreamsProperties props) {
        String appServer = props.getApplicationServer();
        String[] hostPort = appServer.split(":");
        log.info("Application server gRPC: '{}'", appServer);
        return new HostInfo(hostPort[0], Integer.parseInt(hostPort[1]));
    }

should be

public HostInfo storageLocalHost(StreamsProperties props) {
        String appServer = props.getApplicationServer();
        String[] hostPort = appServer.split(":");
        log.info("Application server gRPC: '{}'", appServer);
        return new HostInfo(hostPort[0], Integer.parseInt(hostPort[hostPort.length-1]));
    }

it should split on the last ':'