DI parameters that contain a list are not reported as a list

[stof]

When using $container->getParameter('parameter_containing_a_list'), the type provided by the extension is array<int, T> (with the appropriate type for T).
This causes issues when running phpstan in bleeding and passing that value to a function expecting list<T>.

It would be great if the extension could report the type as list<T> when the parameter value is a list.