Update to Kafka 3.4

Updated to bitnami/kafka chart version 21.x which uses Kafka 3.4.
This aligns better with the Kafka version being used for testing in Hono
2.4.

charts/hono/Chart.yaml

@@ -15,7 +15,7 @@ name: hono
 description: |
   Eclipse Hono™ provides remote service interfaces for connecting large numbers of IoT devices to a back end and
   interacting with them in a uniform way regardless of the device communication protocol.
-version: 2.5.5
+version: 2.5.6
 # Version of Hono being deployed by the chart
 appVersion: 2.4.0
 keywords:
@@ -50,5 +50,5 @@ dependencies:
   condition: "mongodb.createInstance"
 - name: "kafka"
   repository: "oci://registry-1.docker.io/bitnamicharts"
-  version: "^20.x"
+  version: "^21.x"
   condition: "kafkaMessagingClusterExample.enabled"

charts/hono/README.md

@@ -102,6 +102,12 @@ helm uninstall eclipse-hono -n hono
 The command removes all the Kubernetes components associated with the chart and deletes the release.
 
 ## Release Notes
+
+### 2.5.6
+
+* Update bitnami/kafka chart to version 21.x which uses Kafka 3.4.
+* Fix creation of example tenant and devices when Device Registry is configured to expose secure ports only.
+
 ### 2.5.5
 
 * Add service account for protocol-adapter pods. Needed to query the container id via the K8s API, as it is