Revert "coin3d: 4.0.3 -> 4.0.4"

Reverts #420051 as FreeCAD now crashes when creating and opening files,
as well as when changing some settings, making the program unusable
(source FreeCAD/FreeCAD#22695).

pkgs/by-name/co/coin3d/package.nix

···
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "coin";
-  version = "4.0.4";
+  version = "4.0.3";
 
   src = fetchFromGitHub {
     owner = "coin3d";
     repo = "coin";
     rev = "v${finalAttrs.version}";
-    hash = "sha256-Zk9tlGMbNhfHKv+Z5VFWr1g3wNuPFzof+7vsLAlOBC4=";
+    hash = "sha256-dUFmcUOdNc3ZFtr+Hnh3Q3OY/JA/WxmiRJiU2RFSSus=";
   };
 
   nativeBuildInputs = [ cmake ];