doc(readme): copyright 2025

Author: chaimleib

README.md

@@ -356,7 +356,7 @@ Based on
 Copyright
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-* [Chaim Leib Halbert][GH], 2013-2023
+* [Chaim Leib Halbert][GH], 2013-2025
 * Modifications, [Konstantin Tretyakov][Konstantin intervaltree], 2014
 
 Licensed under the [Apache License, version 2.0][Apache].