Function replace_images 

pub async fn replace_images(
    client: &PlayClient,
    package: &str,
    locale: &str,
    image_type: ImageType,
    paths: &[PathBuf],
    dry_run: bool,
) -> Result<ImagesReplaced, String>

Delete the bucket’s images and upload paths in order, inside one edit, so a failed upload leaves the old set in place.