fix(uat): change error processing in paho-java-client

[auarbekov]

Issue #, if available:
fix error processing in paho-java-client

Description of changes:

• change error processing
• add isClosing boolean for callback

Why is this change necessary:
Implement scenarios

How was this change tested:
Start the local broker and shutdown the broker after a successful connection.

Test results:

[INFO ] 2023-07-27 21:08:36.788 [main] GRPCLinkImpl - Making gPRC client connection with 127.0.0.1:47619 as client1...
[INFO ] 2023-07-27 21:08:37.244 [main] GRPCLinkImpl - Client connection with Control is established, local address is 127.0.0.1
[INFO ] 2023-07-27 21:08:37.264 [main] GRPCControlServer - GRPCControlServer created and listed on 127.0.0.1:35873
[INFO ] 2023-07-27 21:08:37.336 [main] GRPCLinkImpl - Handle gRPC requests
[INFO ] 2023-07-27 21:08:37.337 [main] GRPCControlServer - Server awaitTermination
[INFO ] 2023-07-27 21:08:40.391 [grpc-default-executor-0] GRPCControlServer - createMqttConnection: clientId client1 broker server:10101
[INFO ] 2023-07-27 21:08:40.408 [grpc-default-executor-0] MqttConnectionImpl - CONNECT Tx user property 'region':'US'
[INFO ] 2023-07-27 21:08:40.409 [grpc-default-executor-0] MqttConnectionImpl - CONNECT Tx user property 'type':'JSON'
[INFO ] 2023-07-27 21:08:40.409 [grpc-default-executor-0] MqttConnectionImpl - CONNECT Tx request response information: true
[INFO ] 2023-07-27 21:08:41.831 [MQTT Rec: client1] MqttConnectionImpl - MQTT connectionId 1 disconnected error 'Connection lost' disconnectInfo 'com.aws.greengrass.testing.mqtt5.client.GRPCClient$DisconnectInfo@23a4a06d'
[INFO ] 2023-07-27 21:08:45.807 [grpc-default-executor-0] GRPCControlServer - Subscription: filter 'test/topic' QoS 0 noLocal false retainAsPublished false retainHandling 2
[INFO ] 2023-07-27 21:08:45.807 [grpc-default-executor-0] GRPCControlServer - Subscribe: connectionId 1 for 1 filters
[ERROR] 2023-07-27 21:08:45.807 [grpc-default-executor-0] GRPCControlServer - exception during subscribe
com.aws.greengrass.testing.mqtt5.client.exceptions.MqttException: MQTT client is not in connected state
	at com.aws.greengrass.testing.mqtt5.client.paho.MqttConnectionImpl.stateCheck(MqttConnectionImpl.java:626) ~[classes/:?]
	at com.aws.greengrass.testing.mqtt5.client.paho.MqttConnectionImpl.subscribe(MqttConnectionImpl.java:107) ~[classes/:?]
	at com.aws.greengrass.testing.mqtt5.client.grpc.GRPCControlServer$MqttClientControlImpl.subscribeMqtt(GRPCControlServer.java:458) [classes/:?]
	at com.aws.greengrass.testing.mqtt.client.MqttClientControlGrpc$MethodHandlers.invoke(MqttClientControlGrpc.java:659) [classes/:?]
	at io.grpc.stub.ServerCalls$UnaryServerCallHandler$UnaryServerCallListener.onHalfClose(ServerCalls.java:182) [grpc-stub-1.53.0.jar:1.53.0]
	at io.grpc.internal.ServerCallImpl$ServerStreamListenerImpl.halfClosed(ServerCallImpl.java:355) [grpc-core-1.53.0.jar:1.53.0]
	at io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$1HalfClosed.runInContext(ServerImpl.java:867) [grpc-core-1.53.0.jar:1.53.0]
	at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37) [grpc-core-1.53.0.jar:1.53.0]
	at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:133) [grpc-core-1.53.0.jar:1.53.0]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_361]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_361]
	at java.lang.Thread.run(Thread.java:750) [?:1.8.0_361]
[INFO ] 2023-07-27 21:08:45.825 [grpc-default-executor-0] GRPCControlServer - closeMqttConnection: connectionId 1 reason 4
[INFO ] 2023-07-27 21:08:45.826 [grpc-default-executor-0] MqttConnectionImpl - Disconnect MQTT userProperties: region, US
[INFO ] 2023-07-27 21:08:45.826 [grpc-default-executor-0] MqttConnectionImpl - Disconnect MQTT userProperties: type, JSON
[WARN ] 2023-07-27 21:08:45.826 [grpc-default-executor-0] MqttConnectionImpl - DISCONNECT was not sent on the dead connection
[INFO ] 2023-07-27 21:08:45.837 [grpc-default-executor-0] GRPCControlServer - shutdownAgent: reason 'That's it.'
[INFO ] 2023-07-27 21:08:45.890 [main] GRPCControlServer - Server awaitTermination done
[INFO ] 2023-07-27 21:08:45.890 [main] GRPCLinkImpl - Shutdown gPRC link
[INFO ] 2023-07-27 21:08:45.902 [main] Main - Execution done successfully

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