`file_serial` doesn't work for cucumber tests

I don't know why but the `file_serial` doesn't work for [cucumber-rs](https://github.com/cucumber-rs/cucumber) tests. Tests handler: ```rust #[tokio::test] #[file_serial(balancer, path => "/home/debian/paddler/src/tests/integration/balancer.rs")] pub async fn run_cucumber_tests() { PaddlerWorld::cucumber() .run("src/tests/integration/features/balancer.feature") .await; } ``` Even telling the path of the file, they are run asynchronously and both content are deleted.