Fix wrong configuration key for Compression Type

Fix #4678

@@ -24,7 +24,7 @@ const topicProperties = config.get('kafka.topic_properties');
 const kafkaClientId = config.get('kafka.client_id');
 const acks = Number(config.get('kafka.acks'));
 const requestTimeout = Number(config.get('kafka.requestTimeout'));
-const compressionType = (config.get('kafka.requestTimeout') === "gzip") ? CompressionTypes.GZIP : CompressionTypes.None;
+const compressionType = (config.get('kafka.compression') === "gzip") ? CompressionTypes.GZIP : CompressionTypes.None;
 
 let kafkaClient;
 let kafkaAdmin;