uitest: wait longer for the blocking action event

Blocking actions are normal actions plus a modal dialog. So we need
to wait quite some time before considering the action as failed.

Change-Id: I76360b15f54abb1f957a1cddf5314359dfae2d25

uitest/uitest/test.py

@@ -198,8 +198,8 @@ class UITest(object):
         with EventListener(self._xContext, ["DialogExecute", "ModelessDialogExecute"]) as event:
             thread.start()
             time_ = 0
-            # wait twice as long as we are potentially executing a second action
-            while time_ < 2*MAX_WAIT:
+            # we are not necessarily opeinging a dialog, so wait much longer
+            while time_ < 10 * MAX_WAIT:
                 if event.executed:
                     xDlg = self._xUITest.getTopFocusWindow()
                     if dialog_element: