libco-canonical: v19.1 -> v20

pkgs/development/libraries/libco-canonical/default.nix

@@ -4,13 +4,13 @@ with stdenv.lib;
 
 stdenv.mkDerivation rec {
   pname = "libco-canonical";
-  version = "19.1";
+  version = "20";
 
   src = fetchFromGitHub {
     owner = "canonical";
     repo = "libco";
     rev = "v${version}";
-    sha256 = "03a0fq8f8gc4hjzcf0zsjib4mzag47rxrrg9b5r6bx53vj5rhj78";
+    sha256 = "0r5b1r0sxngx349s5a3zkkvfw5by9y492kr34b25gjspzvjchlxq";
   };
 
   nativeBuildInputs = [ pkgconfig ];