Function to enqueue stylesheet from each LazyBlock

Hello, first of all, thank you for the really great Plugin!

I had a function to enqueue each LazyBlocks individual Stylesheet, which seems to have stopped working after updating to WordPress 6.2.
Each of the Lazyblock folders includes a block.php as well as a block-style.css file.

My code is as follows:

/**
 * Enque block styles
 */
add_action('after_setup_theme', 'watzek_enqueue_block_styles');

function watzek_enqueue_block_styles() {
	$folderPath = get_template_directory() . "/blocks";
	$block_names = array_diff(scandir($folderPath), array('..', '.'));
	foreach ($block_names as $block_name) {
		wp_enqueue_block_style('lazyblock/' . $block_name, array(
			'handle' => $block_name,
			'src' => get_theme_file_uri('blocks/' . $block_name . '/block-style.css'),
		));
	}
}

Maybe somebody has an idea what could be wrong with my code?