fix: suppress PHPMD UnusedFormalParameter for register() stub

The register() method is part of the IBootstrap interface contract.
Like boot(), its $context parameter is intentionally unused in the
template since it serves as a placeholder for app-specific registrations.

Author: WilcoLouwerse

lib/AppInfo/Application.php

@@ -49,6 +49,8 @@ public function __construct()
      * @param IRegistrationContext $context The registration context
      *
      * @return void
+     *
+     * @SuppressWarnings(PHPMD.UnusedFormalParameter)
      */
     public function register(IRegistrationContext $context): void
     {