obinskit: fix hash and add necessary referer header

Co-authored-by: Robert Schütz <[e-mail]>

pkgs/applications/misc/obinskit/default.nix

···
 
   src = fetchurl {
     url = "https://s3.hexcore.xyz/occ/linux/tar/ObinsKit_${version}_x64.tar.gz";
-    sha256 = "1kcn41wmwcx6q70spa9a1qh7wfrj1sk4v4i58lbnf9kc6vasw41a";
+    curlOptsList = [ "--header" "Referer: https://www.hexcore.xyz/" ];
+    hash = "sha256-KhCu1TZsJmcXRSWSTaYOMjt+IA4qqavBwaYzXnkgls0=";
   };
 
   unpackPhase = "tar -xzf $src";