Update copyright info

DEVSIX-6438

Author: Nikita Kovaliov

itext/itext.commons/itext/commons/utils/IanaEncodings.cs

@@ -1,7 +1,7 @@
 /*
  
 This file is part of the iText project.
-Copyright (c) 1998-2020 iText Group NV
+Copyright (c) 1998-2022 iText Group NV
 Authors: Bruno Lowagie, Paulo Soares, et al.
 
 This program is free software; you can redistribute it and/or modify