Bump flask-sqlalchemy in /{{cookiecutter.app_name}}/requirements

Bumps [flask-sqlalchemy](https://github.com/pallets/flask-sqlalchemy) from 2.4.0 to 2.4.1.
- [Release notes](https://github.com/pallets/flask-sqlalchemy/releases)
- [Changelog](https://github.com/pallets/flask-sqlalchemy/blob/master/CHANGES.rst)
- [Commits](https://github.com/pallets/flask-sqlalchemy/compare/2.4.0...2.4.1)

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

{{cookiecutter.app_name}}/requirements/prod.txt

@@ -6,7 +6,7 @@ Werkzeug==0.16.0
 click>=7.0
 
 # Database
-Flask-SQLAlchemy==2.4.0
+Flask-SQLAlchemy==2.4.1
 SQLAlchemy==1.3.8
 
 # Migrations