chore(deps): bump jinja2 from 3.0.2 to 3.0.3 in /tests/apps/python-flask

Bumps [jinja2](https://github.com/pallets/jinja) from 3.0.2 to 3.0.3.
- [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/3.0.2...3.0.3)

---
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==2.0.2
-Jinja2==3.0.2
+Jinja2==3.0.3
 Werkzeug==2.0.2
 gunicorn==20.1.0