utox: 0.7.0 -> 0.9.0

Upstream is weird.

pkgs/applications/networking/instant-messengers/utox/default.nix

···
 
 stdenv.mkDerivation rec {
   name = "utox-${version}";
-  version = "0.7.0";
+  version = "0.9.0";
 
   src = fetchFromGitHub {
     owner = "GrayHatter";
     repo = "uTox";
     rev = "v${version}";
-    sha256 = "1md8fw6zqd3giskd89i56dgrsl83vn27xwr8k22263wkj1fxxw4c";
+    sha256 = "12l2821m4r8p3vmsqhqhfj60yhkl4w4xfy73cvy73qqw6xf2yam1";
   };
 
   buildInputs = [ pkgconfig libtoxcore-dev dbus libvpx libX11 openal freetype