[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

@@ -30,8 +30,8 @@
 final class AdminModuleController
 {
     public function __construct(
-        protected readonly ModuleTemplateFactory $moduleTemplateFactory,
-        protected readonly IconFactory $iconFactory,
+        private readonly ModuleTemplateFactory $moduleTemplateFactory,
+        private readonly IconFactory $iconFactory,
         // ...
     ) {}