Import error with newer itsdangerous versions

[simcop2387]

Describe the bug
Selene does not work with itsdangerous>2.0.1

This is characterized by:

ImportError: cannot import name 'json' from 'itsdangerous' (/home/mycroft/.local/share/virtualenvs/market-HF8OUXd-/lib/python3.9/site-packages/itsdangerous/__init__.py)

To Reproduce
Try running/installing with Python 3.9, or otherwise updating the Pipfile.lock for the account and market api services. Basically any kind of update

Expected behavior
No import error related to json or itsdangerous.

A quick work around is to declare it as an explicit dependency in the Pipfile, instead of relying only on the Pipfile.lock

[packages]
flask = "<1.1"
requests = "*"
pyjwt = "*"
uwsgi = "*"
markdown = "*"
selene = {path = "./../../shared"}
itsdangerous = "==2.0.1"

[chrisveilleux]

Thank you for reporting this issue. It has been resolved in the dev branch and will be included in the next release. See PR #308