python dependency module version tweaks

[spodzone]

If you're following the Get Started instructions, you should also add these just before the final call to python generate.py:

$ pip uninstall cryptography
$ pip install --upgrade cryptography==36.0.2
$ pip install --upgrade jinja2==3.1.2

Alternatively maybe update one of the requirements files.

HTH

[pseudotensor]

Can you say why? I have cryptography==42.0.5 and no issues.