This commit adds a Lazy attribute shortcut for service definitions. The goal here is simply to improve the DX with a single attribute for lazy loaded services, while adding the strict minimum amount of new code.
This attribute can be used as a replacement for the Autowire(lazy: bool|string) attribute on any autowired argument or for the Autoconfigure(lazy: bool|string) attribute on an class definition. Both use case support an optional parameter to specify with class/interface should be used for the proxy.

Usage on a class:

use Symfony\Component\DependencyInjection\Attribute\Lazy;

#[Lazy]
class LazyLoaded
{
    // ...
}

On a method argument:

use Symfony\Component\DependencyInjection\Attribute\Lazy;

class SuperAwesomeService
{
    public function __construct(#[Lazy] SomeOtherService $service)
    {
        // ...
    }
}