Fix error SWT bot test 3

Author: tuanvtdeptre199

tmf/org.eclipse.tracecompass.tmf.ui.swtbot.tests/src/org/eclipse/tracecompass/tmf/ui/swtbot/tests/project/AddProjectNatureTest.java

@@ -269,7 +269,7 @@ private static void toggleFilters(boolean checked) {
                 return;
             } catch (WidgetNotFoundException e3) {
                 // Log available buttons for debugging
-                org.eclipse.swtbot.swt.finder.widgets.SWTBotButton[] buttons = dialogBot.buttons();
+                org.eclipse.swtbot.swt.finder.widgets.SWTBotButton[] buttons = dialogBot.allButtons();
                 StringBuilder availableButtons = new StringBuilder("Available buttons: ");
                 for (org.eclipse.swtbot.swt.finder.widgets.SWTBotButton btn : buttons) {
                     availableButtons.append("[").append(btn.getText()).append("] ");