Make adjustments based on the psalm review

Signed-off-by: Hamid Dehnavi <hamid.dev.pro@gmail.com>
Co-authored-by: Julius Härtl <jus@bitgrid.net>
Signed-off-by: Hamid Dehnavi <hamid.dev.pro@gmail.com>

lib/private/App/AppStore/Fetcher/AppFetcher.php

@@ -39,9 +39,6 @@
 use Psr\Log\LoggerInterface;
 
 class AppFetcher extends Fetcher {
-	/** @var IRegistry */
-	protected IRegistry $registry;
-
 	/** @var bool */
 	private $ignoreMaxVersion;
 
@@ -52,7 +49,7 @@ public function __construct(
 		IConfig $config,
 		private CompareVersion $compareVersion,
 		LoggerInterface $logger,
-		IRegistry $registry,
+		protected IRegistry $registry,
 	) {
 		parent::__construct(
 			$appDataFactory,
@@ -63,8 +60,6 @@ public function __construct(
 			$registry
 		);
 
-		$this->registry = $registry;
-
 		$this->fileName = 'apps.json';
 		$this->endpointName = 'apps.json';
 		$this->ignoreMaxVersion = true;