weka: 3.8.2 -> 3.9.2

Semi-automatic update generated by https://github.com/ryantm/nixpkgs-update tools.

This update was made based on information from https://repology.org/metapackage/weka/versions.

These checks were done:

- built on NixOS
- Warning: no binary found that responded to help or version flags. (This warning appears even if the package isn't expected to have binaries.)
- found 3.9.2 with grep in /nix/store/rv6aq5p1qacvpvaw9vszawzidsh8xdl9-weka-3.9.2
- directory tree listing: https://gist.github.com/c1ee16794a22549147d4d292cad986e5

pkgs/applications/science/math/weka/default.nix

@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   name = "weka-${version}";
-  version = "3.8.2";
+  version = "3.9.2";
 
   src = fetchurl {
     url = "mirror://sourceforge/weka/${stdenv.lib.replaceChars ["."]["-"] name}.zip";
-    sha256 = "0p353lhhcv3swwn1bl64vkyjk480vv9ghhlyqjxiar4p3xifjayb";
+    sha256 = "0zwmhspmqb0a7cm6k6i0s6q3w19ws1g9dx3cp2v3g3vsif6cdh31";
   };
 
   buildInputs = [ unzip ];