g-t-e: only use the 'old' path for Silverblue < 37 now

Because Silverblue 37 has a newer g-t-e.

Signed-off-by: Adam Williamson <awilliam@redhat.com>

tests/applications/gnome-text-editor/skins.pm

@@ -22,7 +22,8 @@ sub run {
     assert_and_click("gte_preferences_submenu");
     wait_still_screen(2);
 
-    if (get_var("CANNED")) {
+    my $relnum = get_release_number;
+    if (get_var("CANNED") && $relnum < 37) {
         # This is for the older version of g-t-e in Silverblue
         # Click on Adwaita;
         assert_and_click("gte_select_adwaita");