build: bump flask-cors in /requirements/time_tracker_api (#288)

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] <[email protected]>

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

Author: dependabot[bot]

requirements/time_tracker_api/prod.txt

@@ -30,7 +30,7 @@ python-semantic-release==5.2.0
 Flask-DebugToolbar==0.11.0
 
 #CORS
-flask-cors==3.0.8
+flask-cors==3.0.9
 
 #JWT
 PyJWT==1.7.1