Create version tag 1.20.1

[asad-siddiqui]

Can a new version be created to incorporate the cryptography package update to 43.0.1? The older cryptography package 43.0.0 causes a CVE

[asad-siddiqui]

This is the update that was merged in yesterday: #502

[pmcollins]

Hi -- yes, we will release a new version early next week and will update this issue when it's done.