Fix CPU checkbox not updating

scripts/wk/hw/osticket.py

@@ -175,6 +175,8 @@ def update_checkboxes(state, num_disk_tests):
       num_disk_tests_run -= 1
     elif group.name.startswith('Disk'):
       disk_tests.extend(group.test_objects)
+    elif group.name.startswith('System'):
+      num_disk_tests_run -= 1
 
   # Bail if osTicket integration disabled
   if state.ost.disabled: