chore(deps): bump jinja2 from 3.1.2 to 3.1.3 in /tests/apps/python-flask

Bumps [jinja2](https://github.com/pallets/jinja) from 3.1.2 to 3.1.3.
- [Release notes](https://github.com/pallets/jinja/releases)
- [Changelog](https://github.com/pallets/jinja/blob/main/CHANGES.rst)
- [Commits](https://github.com/pallets/jinja/compare/3.1.2...3.1.3)

---
updated-dependencies:
- dependency-name: jinja2
  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==3.0.0
-Jinja2==3.1.2
+Jinja2==3.1.3
 Werkzeug==3.0.1
 gunicorn==21.2.0