Bump flask-cors from 3.0.10 to 5.0.0 in /server

Bumps [flask-cors](https://github.com/corydolphin/flask-cors) from 3.0.10 to 5.0.0.
- [Release notes](https://github.com/corydolphin/flask-cors/releases)
- [Changelog](https://github.com/corydolphin/flask-cors/blob/main/CHANGELOG.md)
- [Commits](corydolphin/flask-cors@3.0.10...5.0.0)

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

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

server/requirements.txt

@@ -4,7 +4,7 @@ CacheControl==0.12.11
 Flask==2.3.2
 Flask-Babel==2.0.0
 Flask-Caching==2.0.1
-flask_cors==3.0.10
+flask_cors==5.0.0
 flask_testing==0.8.1
 frozendict==2.3.4
 geojson_rewind==1.0.1