puzzles.xsd in pdd-0.21.0

- old
+ new

@@ -1,9 +1,9 @@
 <?xml version="1.0"?>
 <!--
 (The MIT License)
 
-Copyright (c) 2014-2021 Yegor Bugayenko
+Copyright (c) 2014-2022 Yegor Bugayenko
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the 'Software'), to deal
 in the Software without restriction, including without limitation the rights
 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell