Merge der Upgrades für Confluent/Spring-Boot (Branch 'first-contact')

diff --combined docker-compose.yml
index 9930e9b,ec307f5..463b40b
--- 1/docker-compose.yml
--- 2/docker-compose.yml
+++ b/docker-compose.yml
@@@ -1,14 -1,14 +1,14 @@@
  version: '3.2'
  services:
    zookeeper:
-     image: confluentinc/cp-zookeeper:7.0.2
+     image: confluentinc/cp-zookeeper:7.1.3
      environment:
        ZOOKEEPER_CLIENT_PORT: 2181
      ports:
        - 2181:2181
  
    kafka:
-     image: confluentinc/cp-kafka:7.0.2
+     image: confluentinc/cp-kafka:7.1.3
      environment:
        KAFKA_BROKER_ID: 1
        KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
@@@ -17,12 -17,21 +17,12 @@@
        KAFKA_INTER_BROKER_LISTENER_NAME: DOCKER
        KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: DOCKER:PLAINTEXT, LOCALHOST:PLAINTEXT
        KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
 -      KAFKA_AUTO_CREATE_TOPICS_ENABLE: "false"
      ports:
        - 9092:9082
        - 9082:9082
      depends_on:
        - zookeeper
  
 -  setup:
 -    image: juplo/toolbox
 -    command: >
 -      bash -c "
 -        kafka-topics --bootstrap-server kafka:9092 --delete --if-exists --topic test
 -        kafka-topics --bootstrap-server kafka:9092 --create --topic test --partitions 2
 -      "
 -
    cli:
      image: juplo/toolbox
      command: sleep infinity