mark myself as retired

I retired from this project in 2016, yet I still regularly get support requests by email. I rarely have time to answer those requests, which are better served by community infrastructure anyways.

I suspect other members of the borg "collective" are retired as well, but I do not want to make any claims in that regard.

AUTHORS

@@ -2,7 +2,6 @@ Borg authors ("The Borg Collective")
 ------------------------------------
 
 - Thomas Waldmann <tw@waldmann-edv.de>
-- Antoine Beaupré <anarcat@debian.org>
 - Radek Podgorny <radek@podgorny.cz>
 - Yuri D'Elia
 - Michael Hanselmann <public@hansmi.ch>
@@ -13,6 +12,11 @@ Borg authors ("The Borg Collective")
 - Lauri Niskanen <ape@ape3000.com>
 - Abdel-Rahman A. (Abogical)
 
+Retired
+```````
+
+- Antoine Beaupré <anarcat@debian.org>
+
 Borg is a fork of Attic.
 
 Attic authors