build(deps): bump flask-cors from 3.0.8 to 3.0.9 (#104)

Bumps [flask-cors](https://github.com/corydolphin/flask-cors) from 3.0.8 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@3.0.8...3.0.9)

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

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

requirements.txt

@@ -2,7 +2,7 @@ addict==2.2.1
 celery==4.1.1
 connexion==2.7.0
 Flask==1.1.2
-Flask-Cors==3.0.8
+Flask-Cors==3.0.9
 Flask-PyMongo==2.3.0
 mongomock==3.19.0
 pydantic==1.8.1