Bump flask-cors from 2.1.2 to 3.0.9 (#12)

Bumps [flask-cors](https://github.com/corydolphin/flask-cors) from 2.1.2 to 3.0.9.
- [Release notes](https://github.com/corydolphin/flask-cors/releases)
- [Changelog](https://github.com/corydolphin/flask-cors/blob/master/CHANGELOG.md)
- [Commits](corydolphin/flask-cors@2.1.2...3.0.9)

---
updated-dependencies:
- dependency-name: flask-cors
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements.txt

@@ -1,7 +1,7 @@
 blinker==1.6.2
 click==8.1.3
 Flask==2.3.2
-Flask-Cors==2.1.2
+Flask-Cors==3.0.9
 gunicorn==19.6.0
 itsdangerous==2.1.2
 Jinja2==2.11.3