Bump flask from 2.2.2 to 2.3.2

Bumps [flask](https://github.com/pallets/flask) from 2.2.2 to 2.3.2.
- [Release notes](https://github.com/pallets/flask/releases)
- [Changelog](https://github.com/pallets/flask/blob/main/CHANGES.rst)
- [Commits](https://github.com/pallets/flask/compare/2.2.2...2.3.2)

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

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -1,6 +1,6 @@
 alembic==1.8.1
 click==8.1.3
-Flask==2.2.2
+Flask==2.3.2
 Flask-Assets
 Flask-CORS
 Flask-Mail