debian: extend copyright period to 2022

Signed-off-by: Bastian Krause <bst@pengutronix.de>

Author: Bastian-Krause

debian/copyright

@@ -3,8 +3,8 @@ Upstream-Name: labgrid
 Source: https://github.com/labgrid-project/labgrid
 
 Files: *
-Copyright: Copyright (C) 2016-2021 Pengutronix, Jan Luebbe <entwicklung@pengutronix.de>
-           Copyright (C) 2016-2021 Pengutronix, Rouven Czerwinski <entwicklung@pengutronix.de>
+Copyright: Copyright (C) 2016-2022 Pengutronix, Jan Luebbe <entwicklung@pengutronix.de>
+           Copyright (C) 2016-2022 Pengutronix, Rouven Czerwinski <entwicklung@pengutronix.de>
 License: LGPL-2.1+
 
 Files: man/*