Update sqlalchemy requirement from <2.0 to <3.0

Updates the requirements on [sqlalchemy](https://github.com/sqlalchemy/sqlalchemy) to permit the latest version.
- [Release notes](https://github.com/sqlalchemy/sqlalchemy/releases)
- [Changelog](https://github.com/sqlalchemy/sqlalchemy/blob/main/CHANGES.rst)
- [Commits](https://github.com/sqlalchemy/sqlalchemy/commits)

---
updated-dependencies:
- dependency-name: sqlalchemy
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements.txt

@@ -3,4 +3,4 @@ Flask-SQLAlchemy==2.5.1
 gunicorn==20.1.0
 python-dateutil==2.8.2
 requests==2.28.2
-sqlalchemy<2.0
+sqlalchemy<3.0