Update copyright

Author: fingolfin

PackageInfo.g

@@ -139,7 +139,7 @@ AutoDoc := rec(
     ),
     TitlePage := rec(
         Copyright := Concatenation(
-            "&copyright; 2012-2022 by Sebastian Gutsche and Max Horn<P/>\n\n",
+            "&copyright; 2012-2025 by Sebastian Gutsche and Max Horn<P/>\n\n",
             "This package may be distributed under the terms and conditions ",
             "of the GNU Public License Version 2 or (at your option) any later version.\n"
             ),