remove cryptography version pinning due to paramiko newer than 2.11.0

[TurnOffNOD]

Description

according to pull request #1055 and file setup.py # Pinning cryptography should not be needed after paramiko 2.11.0.

Now that paramiko's version is 3.1.0, arch package python-paramiko version is 2.11.1, both newer than 2.11.0, so remove cryptography version pinning.

Checklist

• [x] I've added this contribution to the changelog.md.
• [x] I've added my name to the AUTHORS file (or it's already there).

[kahlstrm]

I would like this change as well, as I'm running into some annoying dependency conflicts.

[Kreijstal]

I would like this as well

[ambrahma]

Any reason why this PR is still blocked?

[amjith]

Thank you!