download nifti from web seems to be broken due to changes to nilearn

[ljchang]

nltools version = 0.5.1

mask = Brain_Data('https://neurovault.org/media/images/8423/k50_2mm.nii.gz')

File /opt/anaconda3/envs/mne/lib/python3.11/site-packages/nltools/data/brain_data.py:131, in Brain_Data.__init__(self, data, Y, X, mask, **kwargs)
    129 # Web download
    130 if "http://" in to_load or "https://" in to_load:
--> 131     from nltools.datasets import download_nifti
    133     tmp_dir = os.path.join(tempfile.gettempdir(), str(os.times()[-1]))
    134     os.makedirs(tmp_dir)

File /opt/anaconda3/envs/mne/lib/python3.11/site-packages/nltools/datasets.py:25
     23 import pandas as pd
     24 from nltools.data import Brain_Data
---> 25 from nilearn.datasets.utils import _get_dataset_dir, _fetch_file
     26 from pynv import Client
     28 # Optional dependencies

ImportError: cannot import name '_get_dataset_dir' from 'nilearn.datasets.utils' (/opt/anaconda3/envs/mne/lib/python3.11/site-packages/nilearn/datasets/utils.py)