x11docker: 7.4.2 -> 7.6.0

pkgs/applications/virtualization/x11docker/default.nix

···
 { lib, stdenv, fetchFromGitHub, makeWrapper, nx-libs, xorg, getopt, gnugrep, gawk, ps, mount, iproute2 }:
 stdenv.mkDerivation rec {
   pname = "x11docker";
-  version = "7.4.2";
+  version = "7.6.0";
   src = fetchFromGitHub {
     owner = "mviereck";
     repo = "x11docker";
     rev = "v${version}";
-    sha256 = "sha256-oyxD6VCut7OfFYozdP0D2+ocOvidTrtaYrh0oCfZzBY=";
+    sha256 = "sha256-DehAWrEvoE/zWbfjQmF5Z7HTaQL5WMA/279Ee1Xm47g=";
   };
   nativeBuildInputs = [ makeWrapper ];