Add missing schema registry configuration in code

uc3-application/src/main/java/theodolite/uc3/application/HistoryService.java

@@ -44,6 +44,7 @@ public class HistoryService {
     // Configuration of the stream application
     final KafkaStreams kafkaStreams = uc3KafkaStreamsBuilder
         .bootstrapServers(this.config.getString(ConfigurationKeys.KAFKA_BOOTSTRAP_SERVERS))
+        .schemaRegistry(this.config.getString(ConfigurationKeys.SCHEMA_REGISTRY_URL))
         .numThreads(this.config.getInt(ConfigurationKeys.NUM_THREADS))
         .commitIntervalMs(this.config.getInt(ConfigurationKeys.COMMIT_INTERVAL_MS))
         .cacheMaxBytesBuffering(this.config.getInt(ConfigurationKeys.CACHE_MAX_BYTES_BUFFERING))