Bump sqlalchemy from 2.0.18 to 2.0.21

Bumps [sqlalchemy](https://github.com/sqlalchemy/sqlalchemy) from 2.0.18 to 2.0.21.
- [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
  update-type: version-update:semver-patch
...

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

setup.py

@@ -34,7 +34,7 @@
         "tqdm==4.65.0",
         "pandas==2.0.3",
         "scikit-learn==1.3.0",
-        "sqlalchemy==2.0.18",
+        "sqlalchemy==2.0.21",
     ],
     extras_require={
         "webapp": ['gunicorn==20.1.0', "flask==2.3.2", "flask-login==0.6.2"],