Bump flask-cors from 3.0.9 to 4.0.1

Bumps [flask-cors](https://github.com/corydolphin/flask-cors) from 3.0.9 to 4.0.1.
- [Release notes](https://github.com/corydolphin/flask-cors/releases)
- [Changelog](https://github.com/corydolphin/flask-cors/blob/main/CHANGELOG.md)
- [Commits](corydolphin/flask-cors@3.0.9...4.0.1)

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

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

requirements.txt

@@ -8,7 +8,7 @@ elasticsearch==7.0.4
 entrypoints==0.3
 flake8==3.7.9
 Flask==2.3.2
-Flask-Cors==3.0.9
+Flask-Cors==4.0.1
 idna==3.7
 itsdangerous==1.1.0
 Jinja2==2.11.3