Kafka AutoTLS test fails when testing against Kafka 2.6.0

[nfnt]

Test output:

• Failure [0.197 seconds]
16:14:22
  KafkaAutoTLS [Kafka Auto TLS] tls enabled [It] verify the SSL listener 
16:14:22
  /teamcity/work/bf7205c90fd8676a/kudo-kafka-operator/tests/suites/kafka_auto_tls/kafka_auto_tls_test.go:47
16:14:22
  
16:14:22
    Expected
16:14:22
        <string>: [2020-11-04 15:14:10,558] INFO [SocketServer brokerId=0] Created data-plane acceptor and processors for endpoint : ListenerName(INTERNAL) (kafka.network.SocketServer)
16:14:22
        [2020-11-04 15:14:10,573] INFO [SocketServer brokerId=0] Created data-plane acceptor and processors for endpoint : ListenerName(CLIENT) (kafka.network.SocketServer)
16:14:22
        [2020-11-04 15:14:11,084] INFO [SocketServer brokerId=0] Started data-plane acceptor and processor(s) for endpoint : ListenerName(INTERNAL) (kafka.network.SocketServer)
16:14:22
        [2020-11-04 15:14:11,105] INFO [SocketServer brokerId=0] Started data-plane acceptor and processor(s) for endpoint : ListenerName(CLIENT) (kafka.network.SocketServer)
16:14:22
  
16:14:22
    to contain substring
16:14:22
        <string>: ListenerName(INTERNAL),SSL [0m

Either the log output of Kafka changed or Kafka isn't actually using SSL in this configuration.