Run DXP 3.3 on PHP 8.2 (#2387)

* docs/getting_started/requirements.md: Add PHP 8.2 support

---------

Co-authored-by: Tomasz Dąbrowski <[email protected]>

Author: adriendupuis

docs/getting_started/requirements.md

@@ -154,11 +154,29 @@ Recommendation for production setups is to use Varnish/Fastly, Redis/Memcached,
 
 === "Ibexa DXP v3.3"
 
+    - 8.2 (see note below)
     - 8.1
     - 8.0 (PHP 8.0 has reached its End of Life. Unless you have extended support from vendors like Debian or Zend, you should use PHP 8.1)
     - 7.4 (PHP 7.4 has reached its End of Life. Unless you have extended support from vendors like Debian or Zend, you should use PHP 8.1)
     - 7.3 (PHP 7.3 has reached its End of Life. Unless you have extended support from vendors like Debian or Zend, you should use PHP 8.1)
 
+    !!! note "Quiet PHP 8.2 deprecation notices from 3rd parties "
+
+        To avoid PHP 8.2 deprecation notices appearing in outputs (and, for example, breaking REST answers),
+        add the following to your `composer.json` after installation:
+
+        ```json
+        "runtime": {
+            "error_handler": "\\Ibexa\\Contracts\\Core\\MVC\\Symfony\\ErrorHandler\\Php82HideDeprecationsErrorHandler"
+        }
+        ```
+
+        Then run the following command:
+
+        ```bash
+        composer dump-autoload
+        ```
+
 === "eZ Platform v2.5"
 
     - 7.1 (PHP 7.1 has reached its End of Life. Unless you have extended support from vendors like Debian or Zend, you should upgrade to Ibexa DXP v3.3 or v4.x)