Fix: Update Dill Version in Setup py
https://github.com/huggingface/datasets/issues/7751 same as https://github.com/huggingface/datasets/pull/7763: some tests need to be fixed to support 0.4.0 fixed by #7763 
Currently the DIll version is less than 3.9 and now major libraries like Multiprocess, gepa requires Dill version as 0.4.0 and this is making a conflict in installation. So added this small PR to update the DIll. 