Bump copyright year

sebastianbergmann · sebastianbergmann · commit 1d58a710e0b9 · 2023-01-02T09:44:04.000+01:00
diff --git a/LICENSE b/LICENSE
@@ -1,6 +1,6 @@
 BSD 3-Clause License
 
-Copyright (c) 2011-2022, Sebastian Bergmann
+Copyright (c) 2011-2023, Sebastian Bergmann
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
