fix jupyterlab version <=3.2.1.

[jasenlo123]

datakit project create --template cookiecutter-python-project broke because pipenv install jupyterlab installed the latest version 3.2.4 which had errors when building jupyterlab (npm dependencies). This hot fix forces an pipenv install of jupyterlab to version 3.2.1 or below.

[ssempervirens]

Thanks, Jasen. This does work for me, but my only question is whether we want to downgrade jupyterlab as opposed to requiring a more recent version of Node, if I am understanding the problem correctly. Seems like we need Node version 13 or greater