Fix: Remove invalid parameter

[willempardaens]

The simple test application uses config parameter customQueueOpt. This is not documented in SEMP and generates an error.

[advanced-event-mesh] - Error: Queue "testQueueName" could not be created
    at AdvancedEventMesh._createQueueM (/Users/i069808/Software/aem-ai-microservice/node_modules/@cap-js/advanced-event-mesh/cds-plugin.js:389:21)
    at processTicksAndRejections (node:internal/process/task_queues:105:5)
    at async AdvancedEventMesh.startListening (/Users/i069808/Software/aem-ai-microservice/node_modules/@cap-js/advanced-event-mesh/cds-plugin.js:311:7) {
  code: 'CREATE_QUEUE_FAILED',
  target: { kind: 'QUEUE', queue: 'testQueueName' },
  reason: {
    code: 11,
    description: "Unknown attribute 'customQueueOpt'",
    status: 'INVALID_PARAMETER'
  }
}