ciscoPacketTracer8: 8.0.1 -> 8.1.1

pkgs/applications/networking/cisco-packet-tracer/8.nix

@@ -27,7 +27,7 @@
 }:
 
 let
-  version = "8.0.1";
+  version = "8.1.1";
 
   ptFiles = stdenv.mkDerivation {
     name = "PacketTracer8Drv";
@@ -36,7 +36,7 @@ let
     dontUnpack = true;
     src = requireFile {
       name = "CiscoPacketTracer_${builtins.replaceStrings ["."] [""] version}_Ubuntu_64bit.deb";
-      sha256 = "77a25351b016faed7c78959819c16c7013caa89c6b1872cb888cd96edd259140";
+      sha256 = "08c53171aa0257a64ae7de1540f242214033cfa4f879fbc9fed5cc0d32232abf";
       url = "https://www.netacad.com";
     };
 
@@ -72,6 +72,7 @@ let
       libXrandr
       libXrender
       libXScrnSaver
+      libXtst
       xcbutilimage
       xcbutilkeysyms
       xcbutilrenderutil