Release xorg-server version 2:1.20.4-1co1

Signed-off-by: Ritesh Raj Sarraf <ritesh.sarraf@collabora.com>

debian/changelog

-xorg-server (2:1.20.4-1co1) UNRELEASED; urgency=medium
+xorg-server (2:1.20.4-1co1) apertis; urgency=medium
 
-  * PLEASE SUMMARIZE remaining Apertis Changes
+  [ Ritesh Raj Sarraf ]
+  * Sync changes from Debian Buster
 
- -- root <sjoerd.simons@collabora.co.uk>  Fri, 02 Aug 2019 07:37:23 +0000
+ -- Ritesh Raj Sarraf <ritesh.sarraf@collabora.com>  Fri, 02 Aug 2019 07:37:23 +0000
 
 xorg-server (2:1.20.4-1) unstable; urgency=medium