SSH: Fix autotest

- Consider the case of connection sharing being disabled.
- Adapt to slower environments.

Change-Id: I088622034c26ea343eb78161b24c43b3286b0512
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

src/libs/ssh/sshconnection.cpp

@@ -231,7 +231,7 @@ void SshConnection::disconnectFromHost()
     case Connecting:
     case Connected:
         if (!d->sharingEnabled) {
-            emitDisconnected();
+            QTimer::singleShot(0, this, &SshConnection::emitDisconnected);
             return;
         }
         d->state = Disconnecting;