rubber: fix build

(cherry picked from commit 074f57b4a83a2d6b3c53a154e88b31b4d2727b10)

pkgs/tools/typesetting/rubber/default.nix

···
     sha256 = "178dmrp0mza5gqjiqgk6dqs0c10s0c517pk6k9pjbam86vf47a1p";
   };
 
-  propagatedBuildInputs = [ texinfo ];
+  nativeBuildInputs = [ texinfo ];
 
   # I couldn't figure out how to pass the proper parameter to disable pdf generation, so we
   # use sed to change the default