gpuvis: 20210220 -> 20211204

Also remove the note on python2 support, upstream merged the PR removing
it.

Signed-off-by: Rouven Czerwinski <rouven@czerwinskis.de>

pkgs/development/tools/misc/gpuvis/default.nix

@@ -12,17 +12,16 @@
 
 stdenv.mkDerivation rec {
   pname = "gpuvis";
-  version = "20210220";
+  version = "20211204";
 
   src = fetchFromGitHub {
     owner = "mikesart";
     repo = pname;
-    rev = "216f7d810e182a89fd96ab9fad2a5c2b1e425ea9";
-    sha256 = "15pj7gy0irlp849a85z68n184jksjri0xhihgh56rs15kq333mwz";
+    rev = "7f47419470687c7ecbdf086b81f5bafdb05d1bef";
+    sha256 = "sha256-29Bv+y0zWzn7QtpsjRV6hr19bCeyVJusPcYiAIEIluk=";
   };
 
   # patch dlopen path for gtk3
-  # python2 is wrongly added in the meson file, upstream PR: https://github.com/mikesart/gpuvis/pull/62
   postPatch = ''
     substituteInPlace src/hook_gtk3.h \
       --replace "libgtk-3.so" "${lib.getLib gtk3}/lib/libgtk-3.so"