Added conditional UI dep for Zipkin
Added conditional UI dep for Zipkin

redhat-developer-demos/brewery,redhat-developer-demos/brewery,redhat-developer-demos/brewery,redhat-developer-demos/brewery,spring-cloud-samples/brewery,spring-cloud-samples/brewery,spring-cloud-samples/brewery,redhat-developer-demos/brewery,spring-cloud-samples/brewery,spring-cloud-samples/brewery