Merge pull request #69330 from mnacamura/r-rf

r-randomForest: fix build on Darwin

pkgs/development/r-modules/default.nix

@@ -449,6 +449,7 @@ let
     pan = [ pkgs.libiconv ];
     phangorn = [ pkgs.libiconv ];
     quadprog = [ pkgs.libiconv ];
+    randomForest = [ pkgs.libiconv ];
     sundialr = [ pkgs.libiconv ];
   };