docs: Update changelog, userguide

Author: neznaika0

user_guide_src/source/changelogs/v4.6.0.rst

@@ -201,6 +201,7 @@ Removed Deprecated Items
 - **Router:** The deprecated ``CodeIgniter\Router\Exceptions\RedirectException`` has been removed. Use ``CodeIgniter\HTTP\Exceptions\RedirectException`` instead.
 - **Security:** ``Config\Security::$samesite`` has been removed. Use ``Config\Cookie::$samesite`` instead.
 - **Cookie:** Methods ``dispatch()``, ``setRawCookie()``, ``setCookie()`` in ``CodeIgniter\Cookie\CookieStore`` has been removed. They are now part of ``CodeIgniter\HTTP\ResponseTrait``.
+- **Cookie:** ``CodeIgniter\Cookie\Cookie::withNeverExpiring()`` has been removed.
 
 ************
 Enhancements

user_guide_src/source/libraries/cookies.rst

@@ -367,9 +367,7 @@ Class Reference
 
     .. php:method:: withNeverExpiring()
 
-        .. deprecated:: 4.2.6
-
-        .. important:: This method is deprecated. It will be removed in future releases.
+        .. important:: This method is deprecated since 4.2.6 and removed in 4.6.0
 
         :param string $name:
         :rtype: ``Cookie``