Merge pull request #81 from PythonAtSea/dependabot/pip/idna-3.7

Bump idna from 3.4 to 3.7

Author: PythonAtSea

requirements.txt

@@ -13,7 +13,7 @@ Flask-SQLAlchemy==3.1.1
 Flask-WTF==1.2.1
 greenlet==3.0.3
 gunicorn==22.0.0
-idna==3.4
+idna==3.7
 itsdangerous==2.1.2
 Jinja2==3.1.4
 Mako==1.3.2