[TASK] Mark properties as private in AdminModuleController

As the class is defined as final, it does not make sense to set the properties as
protected as this class cannot be extended.

Releases: main, 12.4

Classes/Controller/AdminModuleController.php

@@ -31,8 +31,8 @@
 final readonly class AdminModuleController
 {
     public function __construct(
-        protected ModuleTemplateFactory $moduleTemplateFactory,
-        protected IconFactory $iconFactory,
+        private ModuleTemplateFactory $moduleTemplateFactory,
+        private IconFactory $iconFactory,
         private UriBuilder $uriBuilder,
         // ...
     ) {}