Fix deprecation warnings

[Kartstig]

Background

When running tests, the following warnings are given:

=============================== warnings summary ===============================
../../../../../../../../../opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/deepchem/feat/molecule_featurizers/sparse_matrix_one_hot_featurizer.py:87
../../../../../../../../../opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/deepchem/feat/molecule_featurizers/sparse_matrix_one_hot_featurizer.py:87
  /opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/deepchem/feat/molecule_featurizers/sparse_matrix_one_hot_featurizer.py:87: DeprecationWarning: Please use `spmatrix` from the `scipy.sparse` namespace, the `scipy.sparse.base` namespace is deprecated.
    def untransform(self, one_hot_vectors: scipy.sparse.base.spmatrix) -> str:

../../../../../../../../../opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/tensorflow/python/framework/dtypes.py:35
../../../../../../../../../opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/tensorflow/python/framework/dtypes.py:35
  /opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/tensorflow/python/framework/dtypes.py:35: DeprecationWarning: ml_dtypes.float8_e4m3b11 is deprecated. Use ml_dtypes.float8_e4m3b11fnuz
    from tensorflow.tsl.python.lib.core import pywrap_ml_dtypes

../../../../../../../../../opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/rdkit/Chem/MolStandardize/__init__.py:20
../../../../../../../../../opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/rdkit/Chem/MolStandardize/__init__.py:20
  /opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/rdkit/Chem/MolStandardize/__init__.py:20: DeprecationWarning: The module rdkit.Chem.MolStandardize.standardize is deprecated and will be removed in the next release.
    from .standardize import (Standardizer, canonicalize_tautomer_smiles,

../../../../../../../../../opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/rdkit/Chem/MolStandardize/standardize.py:23
../../../../../../../../../opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/rdkit/Chem/MolStandardize/standardize.py:23
  /opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/rdkit/Chem/MolStandardize/standardize.py:23: DeprecationWarning: The module rdkit.Chem.MolStandardize.charge is deprecated and will be removed in the next release.
    from .charge import ACID_BASE_PAIRS, CHARGE_CORRECTIONS, Reionizer, Uncharger

../../../../../../../../../opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/rdkit/Chem/MolStandardize/standardize.py:24
../../../../../../../../../opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/rdkit/Chem/MolStandardize/standardize.py:24
  /opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/rdkit/Chem/MolStandardize/standardize.py:24: DeprecationWarning: The module rdkit.Chem.MolStandardize.fragment is deprecated and will be removed in the next release.
    from .fragment import PREFER_ORGANIC, FragmentRemover, LargestFragmentChooser

../../../../../../../../../opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/rdkit/Chem/MolStandardize/standardize.py:25
../../../../../../../../../opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/rdkit/Chem/MolStandardize/standardize.py:25
  /opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/rdkit/Chem/MolStandardize/standardize.py:25: DeprecationWarning: The module rdkit.Chem.MolStandardize.metal is deprecated and will be removed in the next release.
    from .metal import MetalDisconnector

../../../../../../../../../opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/rdkit/Chem/MolStandardize/standardize.py:26
../../../../../../../../../opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/rdkit/Chem/MolStandardize/standardize.py:26
  /opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/rdkit/Chem/MolStandardize/standardize.py:26: DeprecationWarning: The module rdkit.Chem.MolStandardize.normalize is deprecated and will be removed in the next release.
    from .normalize import MAX_RESTARTS, NORMALIZATIONS, Normalizer

../../../../../../../../../opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/rdkit/Chem/MolStandardize/standardize.py:27
../../../../../../../../../opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/rdkit/Chem/MolStandardize/standardize.py:27
  /opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/rdkit/Chem/MolStandardize/standardize.py:27: DeprecationWarning: The module rdkit.Chem.MolStandardize.tautomer is deprecated and will be removed in the next release.
    from .tautomer import (MAX_TAUTOMERS, TAUTOMER_SCORES, TAUTOMER_TRANSFORMS, TautomerCanonicalizer,

../../../../../../../../../opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/rdkit/Chem/MolStandardize/__init__.py:22
../../../../../../../../../opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/rdkit/Chem/MolStandardize/__init__.py:22
  /opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/rdkit/Chem/MolStandardize/__init__.py:22: DeprecationWarning: The module rdkit.Chem.MolStandardize.validate is deprecated and will be removed in the next release.
    from .validate import Validator, validate_smiles

../../../../../../../../../opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/rdkit/Chem/MolStandardize/validate.py:24
../../../../../../../../../opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/rdkit/Chem/MolStandardize/validate.py:24
  /opt/hostedtoolcache/Python/3.9.19/x64/lib/python3.9/site-packages/rdkit/Chem/MolStandardize/validate.py:24: DeprecationWarning: The module rdkit.Chem.MolStandardize.validations is deprecated and will be removed in the next release.
    from .validations import VALIDATIONS