Backport v2022 <- v2023: Update from debian/bullseye-security

debian/changelog

+xorg-server (2:1.20.11-1+deb11u9+apertis1) apertis; urgency=medium
+
+  * Sync updates from Debian Bullseye Security.
+  * Remaining Apertis specific changes:
+    + Add patch disable-libgl-in-xwayland.patch to disable glamor and
+      glxvnd in xwayland to avoid Xwayland depending on big GL.
+
+ -- Apertis CI <devel@lists.apertis.org>  Fri, 15 Dec 2023 09:45:31 +0000
+
 xorg-server (2:1.20.11-1+deb11u9) bullseye-security; urgency=high
 
   * Non-maintainer upload by the Security Team.