Update dependencies to support Python 3.10

Author: jungleBadger

backend/requirements.txt

@@ -1,14 +1,14 @@
-aniso8601==6.0.0
-Click==7.0
-Flask==1.0.3
-Flask-Cors==3.0.7
-Flask-RESTful==0.3.7
-Flask-SQLAlchemy==2.4.0
-itsdangerous==1.1.0
-Jinja2==2.10.1
-MarkupSafe==1.1.1
-psycopg2-binary==2.8.2
-pytz==2019.1
-six==1.12.0
-SQLAlchemy==1.3.4
-Werkzeug==0.15.5
+aniso8601>=9.0.1
+Click>=8.0.0
+Flask>=2.0.0
+Flask-Cors>=3.0.10
+Flask-RESTful>=0.3.9
+Flask-SQLAlchemy>=2.5.1
+itsdangerous>=2.0.0
+Jinja2>=3.0.0
+MarkupSafe>=2.0.0
+psycopg2-binary>=2.9.0
+pytz>=2021.1
+six>=1.16.0
+SQLAlchemy>=1.4.0
+Werkzeug>=2.0.0