gstreamer: 1.10.3 -> 1.10.4 for multiple CVEs

See https://gstreamer.freedesktop.org/releases/1.10/#1.10.4.

Fixes:

  * CVE-2017-5847
  * CVE-2017-5848

cc #23072

pkgs/development/libraries/gstreamer/ugly/default.nix

@@ -5,7 +5,7 @@
 }:
 
 stdenv.mkDerivation rec {
-  name = "gst-plugins-ugly-1.10.3";
+  name = "gst-plugins-ugly-1.10.4";
 
   meta = with stdenv.lib; {
     description = "Gstreamer Ugly Plugins";
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
 
   src = fetchurl {
     url = "${meta.homepage}/src/gst-plugins-ugly/${name}.tar.xz";
-    sha256 = "1lkb8kznc9wxmhbp7k67b50y27nz8jp2x2flb91xzydz7b89f5f9";
+    sha256 = "0ngsiwcsz3jd08id4mc0qiy2q1n7h2kkvdnh3r1vm725m1ycg1k3";
   };
 
   outputs = [ "out" "dev" ];