Add KafkaOptions.MainConfig to AutoCreateTopic (#810)

Co-authored-by: Alexey Nikitin <Aleksey.Nikitin@domrf.ru>

src/DotNetCore.CAP.Kafka/IProcessingServer.AutoCreateTopic.cs

@@ -31,7 +31,7 @@ namespace DotNetCore.CAP.Kafka
         {
             try
             {
-                var config = new AdminClientConfig { BootstrapServers = _kafkaOptions.Servers };
+                var config = new AdminClientConfig(_kafkaOptions.MainConfig) { BootstrapServers = _kafkaOptions.Servers };
 
                 var topics = _selector.GetAllTopics();