-- pg_tre 1.5.3 -> 1.5.4 upgrade.
--
-- No catalog changes: 1.5.4 is a C-level correctness/hardening release
-- (ambulkdelete now cleans INLINE postings stored in upper-tree leaves,
-- exact num_index_tuples reporting, and a defensive guard on the
-- compiled-NFA state count).  This upgrade script is an intentional
-- no-op.