fix(deps): update dependency flask-cors to v4 [security]

Author: renovate-bot

docker-image/locust-tasks/requirements.txt

@@ -6,7 +6,7 @@ click==8.1.2
 ConfigArgParse==1.5.3
 Flask==2.1.1
 Flask-BasicAuth==0.2.0
-Flask-Cors==3.0.10
+Flask-Cors==4.0.2
 gevent==21.12.0
 geventhttpclient==1.5.3
 greenlet==1.1.2