Update copyright years.

debian/changelog

@@ -2,6 +2,7 @@ lxqt-session (1.4.0-0ubuntu1) UNRELEASED; urgency=medium
 
   * New upstream release.
   * Bump build dependencies.
+  * Update copyright years.
 
  -- Simon Quigley <tsimonq2@ubuntu.com>  Sun, 12 Nov 2023 18:57:57 -0600
 

debian/copyright

@@ -3,7 +3,7 @@ Upstream-Name: lxqt-session
 Source: https://github.com/lxqt/lxqt-session
 
 Files: *
-Copyright: 2010-2022 LXQt team
+Copyright: 2010-2023 LXQt team
            2015-2021 Palo Kisa <palo.kisa@gmail.com>
            2010-2018 Petr Vanek <petr@scribus.info>
            2010-2016 Paulo Lieuthier <paulolieuthier@gmail.com>