Bump cryptography from 2.9.2 to 3.0 (#477)

dependabot[bot] · web-flow · commit 18199a637d9c · 2020-07-28T23:38:59.000+02:00
diff --git a/requirements/requirements.txt b/requirements/requirements.txt
@@ -2,6 +2,6 @@ boto3~=1.14.10
 marshmallow==3.7.1
 PyYAML>=5.1,<5.4
 requests==2.24.0
-cryptography==2.9.2
+cryptography==3.0
 wrapt==1.12.1
 unix-ar==0.2.1
