Bump sqlalchemy from 1.1.9 to 1.3.0 in /requirements

Bumps [sqlalchemy](https://github.com/sqlalchemy/sqlalchemy) from 1.1.9 to 1.3.0.
- [Release notes](https://github.com/sqlalchemy/sqlalchemy/releases)
- [Changelog](https://github.com/sqlalchemy/sqlalchemy/blob/master/CHANGES)
- [Commits](https://github.com/sqlalchemy/sqlalchemy/commits)

Signed-off-by: dependabot[bot] <support@github.com>

requirements/prod.txt

@@ -1,7 +1,7 @@
 # Everything needed in production
 
 Werkzeug
-SQLAlchemy==1.1.9
+SQLAlchemy==1.3.0
 Flask_Caching
 Flask_SQLAlchemy==2.2
 click