Mqtt Nuget Version 4.3.x not connecting via TLS

[alberk8]

Describe the bug

MQTT TLS connection ends up with error below. The earlier nuget version 4.2.1.781 works.
Tested on .Net 6 and 7

MQTTnet.Adapter.MqttConnectingFailedException: 'Error while authenticating. Expected at least 770 bytes but there are only 3 bytes'

Which component is your bug related to?

• ManagedClient

To Reproduce

Steps to reproduce the behavior:

1. Using this version of MQTTnet 'nuget 4.3.0.858'.
2. Run this code

 static async Task Main(string[] args)
 {
     string _topic = "/monitor";
     Console.WriteLine("Starting Part 1");
    
     string clientID = Guid.NewGuid().ToString();
     var options = new MqttClientOptionsBuilder()
       .WithClientId(clientID)
       .WithTcpServer((opt) =>
         {
         opt.Server = "broker.emqx.io";
         opt.Port = 8883;
         opt.TlsOptions = new MqttClientTlsOptions { 
				UseTls = true, 
				SslProtocol = System.Security.Authentication.SslProtocols.Tls12 
					      |	System.Security.Authentication.SslProtocols.Tls13 };

         })
        .WithCleanSession()
        .Build();

       using var mqttClient = new MqttFactory().CreateMqttClient();
       var connResult = await mqttClient.ConnectAsync(options, CancellationToken.None);
       Console.WriteLine($"Connection Result: {connResult.ResultCode}");
  
       if (connResult.ResultCode == MqttClientConnectResultCode.Success)
       {
         var result = await mqttClient.PublishAsync(new MqttApplicationMessage 
         { 
             Topic = _topic + "/data", 
             Payload = Encoding.UTF8.GetBytes("123") 
         });
      }
       else
       {
         Console.WriteLine(connResult.ReasonString);
       }

     Console.ReadKey();
 
 }

Expected behavior

There should be no error. Previous version of the nuget works.

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Code example

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Ideally a Unit Test (which shows the error) is provided so that the behavior can be reproduced easily.