Set a minimum version for cryptography (#176)

Author: awalker4

gen.yaml

@@ -17,6 +17,7 @@ python:
       httpx: '>=0.27.0'
       nest-asyncio: '>=1.6.0'
       pypdf: '>=4.0'
+      cryptography: '>=3.1'
       requests-toolbelt: '>=1.0.0'
     extraDependencies:
       dev: {}