Updated copyright notice to 2025, because why not?

Author: DaloLorn

LICENSE.txt

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2024 Open Star Ruler Team
+Copyright (c) 2025 Open Star Ruler Team
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal