chore(deps): bump werkzeug in /tests/apps/python-flask

Bumps [werkzeug](https://github.com/pallets/werkzeug) from 2.1.1 to 2.1.2.
- [Release notes](https://github.com/pallets/werkzeug/releases)
- [Changelog](https://github.com/pallets/werkzeug/blob/main/CHANGES.rst)
- [Commits](https://github.com/pallets/werkzeug/compare/2.1.1...2.1.2)

---
updated-dependencies:
- dependency-name: werkzeug
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

tests/apps/python-flask/requirements.txt

@@ -1,5 +1,5 @@
 Flask==2.1.1
 Jinja2==3.1.1
-Werkzeug==2.1.1
+Werkzeug==2.1.2
 gunicorn==20.1.0