Fix typo in kafka-event-listener example

Author: maxgruber19

docs/src/main/sphinx/admin/event-listeners-kafka.md

@@ -61,7 +61,7 @@ kafka-event-listener.broker-endpoints=kafka.example.com:9093
 kafka-event-listener.created-event.topic=query_create
 kafka-event-listener.completed-event.topic=query_complete
 kafka-event-listener.client-id=trino-example
-kafka.config.resources=/etc/kafka-configuration.properties
+kafka-event-listener.config.resources=/etc/kafka-configuration.properties
 ```
 
 The contents of `/etc/kafka-configuration.properties` can for example be: