Bump confluentinc/cp-kafka image to 7.7.0 for aarch64 support

Author: rsvoboda

context-propagation-quickstart/src/test/java/org/acme/context/prices/KafkaResource.java

@@ -9,7 +9,7 @@
 
 public class KafkaResource implements QuarkusTestResourceLifecycleManager {
 
-    private final KafkaContainer kafka = new KafkaContainer();
+    private final KafkaContainer kafka = new KafkaContainer("7.7.0");
 
     @Override
     public Map<String, String> start() {

kafka-streams-quickstart/aggregator/src/test/java/org/acme/kafka/streams/aggregator/streams/KafkaResource.java

@@ -9,7 +9,7 @@
 
 public class KafkaResource implements QuarkusTestResourceLifecycleManager {
 
-    private final static KafkaContainer kafka = new KafkaContainer(DockerImageName.parse("confluentinc/cp-kafka:5.4.3"));
+    private final static KafkaContainer kafka = new KafkaContainer(DockerImageName.parse("confluentinc/cp-kafka:7.7.0"));
 
     @Override
     public Map<String, String> start() {