ConfigurationDumper.php: Back to @param

The syntax is accepted by phpDocumentor 3.3.1 and 3.4.1;
The syntax error was only due to question mark misplacement.

src/contracts/Container/Encore/ConfigurationDumper.php

@@ -31,7 +31,7 @@ public function __construct(ContainerInterface $containerBuilder)
     }
 
     /**
-     * @phpstan-param array<string, array<string, array{'deprecated'?: bool, 'alternative'?: string}>> $webpackConfigNames
+     * @param array<string, array<string, array{'deprecated'?: bool, 'alternative'?: string}>> $webpackConfigNames
      *
      * @throws \JsonException
      */