bugfix(compatibility): backward compatibility

CHANGELOG.md

+## [1.13.2] - 2024-08-13
+### Fixed
+- backward compatibility, when second parameter in `SimpleLoggerFactory` constructor is null
+
 ## [1.13.1] - 2024-08-13
 ### Fixed
 - removed redundant semicolon in `SimpleLoggerFactory` class

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();