chore(deps): Bump flask from 2.3.3 to 3.0.0 in /rootfs/webapp

Bumps [flask](https://github.com/pallets/flask) from 2.3.3 to 3.0.0.
- [Release notes](https://github.com/pallets/flask/releases)
- [Changelog](https://github.com/pallets/flask/blob/main/CHANGES.rst)
- [Commits](pallets/flask@2.3.3...3.0.0)

---
updated-dependencies:
- dependency-name: flask
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

rootfs/webapp/requirements.txt

@@ -1,5 +1,5 @@
 eventlet==0.33.3
-Flask==2.3.3
+Flask==3.0.0
 Flask-SocketIO==5.3.6
 gunicorn[eventlet]==21.2.0
 requests==2.31.0