patientpaths: get_cmd_cwd issue due to older version of MLHUB

[shashank-gv]

Steps to recreate:

ml install patientpaths
ml configure patientpaths
ml demo patientpaths

Full error message:

ml demo patientpaths
Graphic display is required but not available for command 'demo'. Continue [y/N]? y
Traceback (most recent call last):
  File "/home/user/.mlhub/patientpaths/demo.py", line 16, in <module>
    from mlhub.utils import get_cmd_cwd
ImportError: cannot import name 'get_cmd_cwd' from 'mlhub.utils' (/home/user/.local/lib/python3.10/site-packages/mlhub/utils.py)

Same issue as: #276 (comment)