fix(config): delete dir simultaneously when deleting temporary files

[btea]

Description

When deleting temporary files, the corresponding temporary folders are not deleted. I think it would be better to delete them synchronously.

[sapphi-red]

I guess this would cause problem when there's two Vite instances and one instance calls the rm in this PR while the other instance called this mkdir and not called this await import.

[btea]

I guess this would cause problem when there's two Vite instances and one instance calls the rm in this PR while the other instance called this mkdir and not called this await import.

👍 Good catch, there may be such a situation, maybe we should keep the code as it is. Even if there is an empty folder inside the node_modules folder, it will not have any effect.