Fix error when building the extension

[IsabelParedes]

Currently, the extension fails the build check. This is potentially caused by ipywidgets=8.0 and jupyter-packaging=0.12

WARNING: Build tool `jupyter-packaging` is missing. Install it with pip or conda.
/home/miniconda3/env/lib/python3.9/site-packages/setuptools/config/expand.py:144: UserWarning: File '/home/repos/jupyter-ros-ipywidgets/README.rst' cannot be found
  warnings.warn(f"File {path!r} cannot be found")
/home/miniconda3/env/lib/python3.9/site-packages/setuptools/config/expand.py:144: UserWarning: File '/home/repos/jupyter-ros-ipywidgets/CHANGELOG.rst' cannot be found
  warnings.warn(f"File {path!r} cannot be found")
/home/miniconda3/env/lib/python3.9/site-packages/setuptools/config/expand.py:144: UserWarning: File '/home/repos/jupyter-ros-ipywidgets/LICENSE.rst' cannot be found
  warnings.warn(f"File {path!r} cannot be found")
INFO: signal_shutdown [atexit]
An error occurred.
pkg_resources.extern.packaging.requirements.InvalidRequirement: Parse error at "'actionli'": Expected string_end

[hbcarlos]

Thanks, @ihuicatl!