refactor: restore deprecated $proxyIPs

Author: kenjis

system/HTTP/Request.php

@@ -21,6 +21,15 @@ class Request extends OutgoingRequest implements RequestInterface
 {
     use RequestTrait;
 
+    /**
+     * Proxy IPs
+     *
+     * @var array<string, string>
+     *
+     * @deprecated 4.0.5 No longer used. Check the App config directly
+     */
+    protected $proxyIPs;
+
     /**
      * Constructor.
      *

user_guide_src/source/changelogs/v4.4.0.rst

@@ -137,7 +137,6 @@ Changes
 - **Config:** The deprecated Session items in **app/Config/App.php** has been removed.
 - **Config:** Routing settings have been moved to **app/Config/Routing.php** config file.
   See :ref:`Upgrading Guide <upgrade-440-config-routing>`.
-- **Request:** The deprecated property ``$proxyIPs`` has been removed.
 - **DownloadResponse:** When generating response headers, does not replace the ``Content-Disposition`` header if it was previously specified.
 - **Autoloader:** Before v4.4.0, CodeIgniter autoloader did not allow special
   characters that are illegal in filenames on certain operating systems.