[BUG] MQTT topics of AAS Repository are not base64 encoded

[BlackRose01]

Describe the bug
When I connect the AAS Repository with a MQTT Broker and I create/update/delete a submodel then the ID of the Submodel is not Base64 encoded.

To Reproduce
Steps to reproduce the behavior:

1. Set up a basic AAS Environment and Mosquitto Broker
2. Connect the environment with thhe mqtt broker
3. Create new AAS with a submodel

Expected behavior
The ID of the Submodel should be Base64 encoded.

BaSyx (please complete the following information):

• BaSyx Version v2.0 -> Docker Image: eclipsebasyx/aas-environment:2.0.0-SNAPSHOT
• BaSyx SDK Java
• AAS Version DotAAS V3

Screenshots
If applicable, add screenshots to help explain your problem.

Used Asset Administration files (.aasx/.json/.xml)
Please drop your AAS files here that were used when the bug was encountered.

BaSyx configuration

apiVersion: v1
kind: ConfigMap
metadata:
  name: aasenvironment-configmap
data:
  BASYX_BACKEND: InMemory
  SPRING_SERVLET_MULTIPART_MAX_FILE_SIZE: 100MB
  SPRING_SERVLET_MULTIPART_MAX_REQUEST_SIZE: 100MB
  BASYX_ENVIRONMENT: file:aas
  BASYX_CORS_ALLOWED_ORIGINS: "*"
  BASYX_CORS_ALLOWED_METHODS: GET,POST,PATCH,DELETE,PUT,OPTIONS,HEAD
  BASYX_AASREPOSITORY_FEATURE_REGISTRYINTEGRATION: "http://aasregistry-service.aas-registry:8080"
  BASYX_EXTERNALURL: "https://my-aas.aas"
  BASYX_FEATURE_MQTT_ENABLED: "true"
  MQTT_CLIENTID: "Abatement"
  MQTT_HOSTNAME: "mosquitto-service.aas-environemnt"
  MQTT_PORT: "1883"

System (please complete the following information):

• OS: Talos Kubernetes
• CPU architecture: amd64
• Browser Firefox
• Version latest

Additional context
A screenshot from my MQTT Viewer.