lock kafka docker image

Author: icebob

test/docker-compose.yml

@@ -37,14 +37,14 @@ services:
       - "8161:8161"
 
   zookeeper:
-    image: bitnami/zookeeper
+    image: bitnami/zookeeper:3.9
     environment:
       - ALLOW_ANONYMOUS_LOGIN=yes
     ports:
       - "2181:2181"
 
   kafka:
-    image: bitnami/kafka
+    image: bitnami/kafka:3.9
     environment:
       - KAFKA_CFG_ZOOKEEPER_CONNECT=zookeeper:2181
       - KAFKA_LISTENER_SECURITY_PROTOCOL_MAP=PLAINTEXT:PLAINTEXT,EXTERNAL:PLAINTEXT