Fix uc4 kafkastreams application: add missing shema registry url to properties

uc4-application/src/main/resources/META-INF/application.properties

@@ -6,6 +6,9 @@ kafka.input.topic=input
 kafka.output.topic=output
 aggregation.duration.days=30
 aggregation.advance.days=1
+
+schema.registry.url=http://localhost:8091
+
 num.threads=1
 commit.interval.ms=100
 cache.max.bytes.buffering=-1