adjusted year in license

Author: btschwertfeger

LICENSE

@@ -620,7 +620,7 @@ copy of the Program in return for a fee.
 
                      END OF TERMS AND CONDITIONS
 
-    Copyright (C) 2022 Benjamin Thomas Schwertfeger
+    Copyright (C) 2023 Benjamin Thomas Schwertfeger
 
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by