Handle new cryptography versioning scheme

fixes #452

Author: vimalloc

requirements.txt

@@ -1,5 +1,5 @@
 black==21.6b0
-cryptography==3.4.7
+cryptography==35.0.0
 Flask==2.0.1
 Pallets-Sphinx-Themes==2.0.1
 pre-commit==2.13.0

setup.py

@@ -30,7 +30,7 @@
         "Flask>=1.0,<3.0",
         "PyJWT>=2.0,<3.0",
     ],
-    extras_require={"asymmetric_crypto": ["cryptography>=3.0,<4.0"]},
+    extras_require={"asymmetric_crypto": ["cryptography>=35.0.0"]},
     python_requires=">=3.6,<4",
     classifiers=[
         "Development Status :: 5 - Production/Stable",