* Add missing .ConfigureAwait(false) call

Author: lukebakken

projects/RabbitMQ.Client/client/impl/Connection.cs

@@ -416,7 +416,8 @@ private async Task FinishCloseAsync(CancellationToken cancellationToken)
             _closed = true;
             MaybeStopHeartbeatTimers();
 
-            await _frameHandler.CloseAsync(cancellationToken);
+            await _frameHandler.CloseAsync(cancellationToken)
+                .ConfigureAwait(false);
             _channel0.SetCloseReason(CloseReason);
             _channel0.FinishClose();
             RabbitMqClientEventSource.Log.ConnectionClosed();