Update colorchooser.ui test output

These are expected changes from the last few commits.

testsuite/a11y/colorchooser.txt

@@ -1261,18 +1261,27 @@ window1
                                       weight: <omitted>
                                       wrap-mode: word
                   <AtkHypertext>
-    dialog-action_area1
+    action_area
       "filler"
       parent: dialog-vbox1
       index: 1
-      state: enabled horizontal sensitive showing visible
+      state: enabled horizontal sensitive
       toolkit: gtk
       <AtkComponent>
       layer: widget
       alpha: 1
-      cancel_button
+  headerbar
+    "panel"
+    parent: window1
+    index: 1
+    state: enabled sensitive showing visible
+    toolkit: gtk
+    <AtkComponent>
+    layer: widget
+    alpha: 1
+    unnamed-GtkButtonAccessible-42
       "push button"
-        parent: dialog-action_area1
+      parent: headerbar
       index: 0
       name: Cancel
       state: enabled focusable sensitive showing visible
@@ -1287,9 +1296,9 @@ window1
       action 0 name: click
       action 0 description: Clicks the button
       action 0 keybinding: <Alt>c
-      select_button
+    unnamed-GtkButtonAccessible-43
       "push button"
-        parent: dialog-action_area1
+      parent: headerbar
       index: 1
       name: Select
       state: enabled focusable sensitive showing visible default