refs #21064 [fid] fix code style in Role\FidApiPermission

* also changes visibility for member variable

module/fid/src/Role/PermissionProvider/FidApiPermission.php

@@ -25,7 +25,7 @@
  * @author   Demian Katz <demian.katz@villanova.edu>
  * @author   Jochen Lienhard <lienhard@ub.uni-freiburg.de>
  * @author   Ere Maijala <ere.maijala@helsinki.fi>
- * @author   Gregor Gawol <gawol@ub.uni-leipzig.de>
+ * @author   Dorian Merz <merz@ub.uni-leipzig.de>
  * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
  * @link     https://vufind.org Main Page
  */
@@ -49,10 +49,17 @@ use VuFind\Role\PermissionProvider\PermissionProviderInterface;
 class FidApiPermission implements PermissionProviderInterface
 {
     /**
+     * Fid client
+     *
      * @var FidApiClient
      */
-    private $client;
+    protected $client;
 
+    /**
+     * FidApiPermission constructor.
+     *
+     * @param FidApiClient $client fid client
+     */
     public function __construct(FidApiClient $client)
     {
         $this->client = $client;