ctdb-scripts: Change default persistent DB for statd_callout_helper

ctdb-scripts: Change default persistent DB for statd_callout_helper

This database isn't use throughout CTDB, so name the it more
specifically.

Note that this might cause locks to be lost during upgrade to the
first version containing this change.

For testing, a different name is chosen to exercise related
functionality.

Signed-off-by: Martin Schwenke <mschwenke@ddn.com>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Autobuild-User(master): Amitay Isaacs <amitay@samba.org>
Autobuild-Date(master): Fri Dec 13 15:01:10 UTC 2024 on atb-devel-224