chore(docker-compose): remove top-level version attribute

Signed-off-by: Varsha GS <varsha.gs@ibm.com>

Author: GSVarsha

docker-compose.yml

@@ -1,4 +1,3 @@
-version: '3.8'
 services:
   redis:
     image: public.ecr.aws/docker/library/redis
@@ -74,4 +73,4 @@ services:
       - KAFKA_CFG_LISTENER_SECURITY_PROTOCOL_MAP=CONTROLLER:PLAINTEXT,EXTERNAL:PLAINTEXT,PLAINTEXT:PLAINTEXT
       - KAFKA_CFG_CONTROLLER_QUORUM_VOTERS=0@kafka:9093
       - KAFKA_CFG_CONTROLLER_LISTENER_NAMES=CONTROLLER
-      - KAFKA_CFG_ADVERTISED_LISTENERS=PLAINTEXT://kafka:9092,EXTERNAL://localhost:9094
+      - KAFKA_CFG_ADVERTISED_LISTENERS=PLAINTEXT://kafka:9092,EXTERNAL://localhost:9094