Replace cloudooo valid url by a broken one

This will be used on some Fiability tests which seems to overaccess cloudooo.net

stack/erp5/buildout.cfg

@@ -332,8 +332,7 @@ repository_id_list = erp5 erp5-bin erp5-doc
 # Default cloudooo is https://cloudooo.erp5.net/ and  https://cloudooo1.erp5.net/ in random order.
 # The random order is applied in instance profile
 cloudooo-connection-url-list =
-  https://cloudooo.erp5.net/
-  https://cloudooo1.erp5.net/
+  https://xxx.xxx.xx/
 # Jupyter is by default disabled in ERP5
 jupyter-enable-default = false
 # WCFS is by default disabled in ERP5