Bump flask from 2.2.5 to 2.3.3

Bumps [flask](https://github.com/pallets/flask) from 2.2.5 to 2.3.3.
- [Release notes](https://github.com/pallets/flask/releases)
- [Changelog](https://github.com/pallets/flask/blob/main/CHANGES.rst)
- [Commits](pallets/flask@2.2.5...2.3.3)

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

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

requirements.txt

@@ -1,5 +1,5 @@
 peewee==3.9.5
-Flask==2.2.5
+Flask==2.3.3
 Werkzeug==2.2.3
 gunicorn==20.1.0