AC-8862: fix static errors

Author: alzota

lib/internal/Magento/Framework/App/Config.php

@@ -133,4 +133,15 @@ public function get($configType, $path = '', $default = null)
 
         return $result !== null ? $result : $default;
     }
+
+    /**
+     * Disable show internals with var_dump
+     *
+     * @see https://www.php.net/manual/en/language.oop5.magic.php#object.debuginfo
+     * @return array
+     */
+    public function __debugInfo()
+    {
+        return [];
+    }
 }