Symfony 6.3 deprecation warnings

[Miras4207]

After updating to Symfony 6.3, we get the following deprecation warnings with version 1.9.2 of this package.

Method "Symfony\Component\DependencyInjection\Extension\ExtensionInterface::load()" might add "void" as a native return type declaration in the future. Do the same in implementation "APY\BreadcrumbTrailBundle\DependencyInjection\APYBreadcrumbTrailExtension" now to avoid errors or add an explicit @return annotation to suppress this message.

Method "Symfony\Component\Config\Definition\ConfigurationInterface::getConfigTreeBuilder()" might add "TreeBuilder" as a native return type declaration in the future. Do the same in implementation "APY\BreadcrumbTrailBundle\DependencyInjection\Configuration" now to avoid errors or add an explicit @return annotation to suppress this message.

[rvanlaak]

Thanks for creating the issue, are you available to help by providing a PR with the fix?