Update copyright

Signed-off-by: Filippo Romani <filippo@romani.cc>

Author: filipporomani

LICENSE

@@ -1,7 +1,7 @@
                     GNU AFFERO GENERAL PUBLIC LICENSE
                        Version 3, 19 November 2007
 
- Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Copyright © Filippo Romani
  Everyone is permitted to copy and distribute verbatim copies
  of this license document, but changing it is not allowed.