docs: change the change log.

Author: ping-yee

user_guide_src/source/changelogs/v4.5.6.rst

@@ -40,7 +40,7 @@ Bugs Fixed
 - **Routing:** Fixed a TypeError in `str_replace()` when `Routing::$translateURIDashes` is set to `true` and a route is defined using a closure.
 
 - **Validation:** Fixed a bug where complex language strings were not properly handled.
-- **PostgreSQL Connection:** Fixed bug that PostgreSQL cannot reconnect the database with ``reconnect()`` method.
+- **Database:** Fixed a bug that caused ``Postgre\Connection::reconnect()`` method to throw an error when the connection had not yet been established.
 
 See the repo's
 `CHANGELOG.md <https://github.com/codeigniter4/CodeIgniter4/blob/develop/CHANGELOG.md>`_