Bump copyright years for myself.

debian/changelog

@@ -6,6 +6,7 @@ lubuntu-artwork (24.04.3) UNRELEASED; urgency=medium
   * Update Vcs-* to match the move to Gitea.
   * Relax several dependencies that have been satisfiable since Focal, and
     remove some ancient Conflicts/Replaces present for several LTSes now.
+  * Bump copyright years for myself.
 
  -- Simon Quigley <tsimonq2@ubuntu.com>  Wed, 29 Nov 2023 09:16:45 -0600
 

debian/copyright

@@ -4,7 +4,7 @@ Upstream-Contact: Lubuntu Developers <lubuntu-devel@lists.ubuntu.com>
 
 Files: *
 Copyright: 2009-2017 Julien Lavergne <gilir@ubuntu.com>
-           2018 Simon Quigley <tsimonq2@ubuntu.com>
+           2018-2023 Simon Quigley <tsimonq2@ubuntu.com>
            2023 Walter Lapchynski <wxl@ubuntu.com>
 License: GPL-2+