bugfix(compatibility): backward compatibility

src/SimpleLoggerFactory.php

@@ -35,6 +35,7 @@ final class SimpleLoggerFactory implements LoggerFactory {
 	 */
 	public function __construct( string $channel, $options = null ) {
 		$this->channel = $channel;
+		$options       = $options ?? new Settings();
 
 		if ( $options instanceof Settings ) {
 			$options = $options->to_array();