`kafka-event-listener.config.resources` replaced `kafka-event-listener.client-config-overrides` in KafkaEventListener properties

[Setsushin]

The old override style property has been officially deprecated in https://github.com/trinodb/trino/blob/master/plugin/trino-kafka-event-listener/src/main/java/io/trino/plugin/eventlistener/kafka/KafkaEventListenerConfig.java. Instead, the kafka-event-listener.config.resources property allows users to use external Kafka property files.