Add deprecation note

Author: MGatner

user_guide_src/source/changelogs/v4.0.5.rst

@@ -14,6 +14,7 @@ Enhancements:
 - Support for setting SameSite attribute on Session and CSRF cookies has been added. For security and compatibility with latest browser versions, the default setting is ``Lax``.
 - Guessing file extensions from mime type in ``Config\Mimes::guessExtensionFromType`` now only reverse searches the ``$mimes`` array if no extension is proposed (i.e., usually not for uploaded files).
 - The getter functions for file extensions of uploaded files now have different fallback values (``$this->getClientExtension()`` for ``UploadedFile->getExtension()`` and ``''`` for ``UploadedFile->guessExtension()``). This is a security fix and makes the process less dependent on the client.
+- The Cache ``FileHandler`` now allows setting the file permissions mode via ``Config\Cache``
 
 Changes:
 
@@ -44,3 +45,4 @@ Deprecations:
 - Deprecated ``CodeIgniter\Config\Config`` in favor of ``CodeIgniter\Config\Factories::config()``
 - Deprecated ``CodeIgniter\HTTP\Message::getHeader`` in favor of ``header()`` to prepare for PSR-7
 - Deprecated ``CodeIgniter\HTTP\Message::getHeaders`` in favor of ``headers()`` to prepare for PSR-7
+- Deprecated ``Config\Cache::$storePath`` in favor of ``Config\Cache::$file['storePath']``