[config] @return Annotation for getConfigTreeBuilder

[Chris53897]

It would be great to have an info about the correct @return Annotation for getConfigTreeBuilder to solve warnings from PHPStan
https://symfony.com/doc/current/bundles/configuration.html

Example:
Error: Method Zenstruck\Messenger\Monitor\DependencyInjection\ZenstruckMessengerMonitorExtension::getConfigTreeBuilder() return type with generic class Symfony\Component\Config\Definition\Builder\TreeBuilder does not specify its types: T

I guess something like this

/**
* @return TreeBuilder<???>
* or
* @template-extends TreeBuilder<ConfigurationInterface>
*/

[nicolas-grekas]

Fixed already by symfony/symfony#62616?

[Chris53897]

Thanks @nicolas-grekas

I changed it to this to get the PHPStan CI run green.

/**
* TODO can be removed after Symfony 8.4.1 is released
* @return TreeBuilder<'array'>
*/
public function getConfigTreeBuilder(): TreeBuilder