gstreamer: 1.8.0 -> 1.8.1 (bugfixes)

Release notes:
https://gstreamer.freedesktop.org/releases/gstreamer/1.8.1.html

Tested with nox-review; this change does not introduce build breakage.

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

@@ -3,7 +3,7 @@
 }:
 
 stdenv.mkDerivation rec {
-  name = "gstreamer-editing-services-1.8.0";
+  name = "gstreamer-editing-services-1.8.1";
 
   meta = with stdenv.lib; {
     description = "Library for creation of audio/video non-linear editors";
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
 
   src = fetchurl {
     url = "${meta.homepage}/src/gstreamer-editing-services/${name}.tar.xz";
-    sha256 = "1gisdfa91kq89bsmbvb47alaxh8lpqmr6f3dzlwmf389nkandw2h";
+    sha256 = "082h6r2kymgb78x6av5mxaszxlqnvr6afq935ackh914vb1anyw9";
   };
 
   outputs = [ "dev" "out" ];