Updating PyPi rdkit dependency from rdkit-pypi to rdkit.

[veerupaksh]

As of March 2025, PyPi no longer allows pip install rdkit-pypi, and only pip install rdkit is supported. This means by default, pip install drfp installs an old version of drfp(0.2.6). Can the dependencies please be updated so that the latest version of drfp may be installed from PyPi.

$ python -m pip install --force-reinstall drfp==0.3.6
Collecting drfp==0.3.6
Using cached drfp-0.3.6-py2.py3-none-any.whl.metadata (6.6 kB)
INFO: pip is looking at multiple versions of drfp to determine which version is compatible with other requirements. This could take a while.
ERROR: Could not find a version that satisfies the requirement rdkit-pypi (from drfp) (from versions: none)
ERROR: No matching distribution found for rdkit-pypi

Thanks,
Veeru