update copyright end date.

Author: rouilj

website/www/conf.py

@@ -48,7 +48,7 @@
 
 # General information about the project.
 project = u'Roundup'
-copyright = u'2009-2022, Richard Jones, Roundup-Team'
+copyright = u'2009-2023, Richard Jones, Roundup-Team'
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the