[TASK] Mark properties as private in AdminModuleController (#283)

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,
         // ...
     ) {}