Bump jinja2 from 3.1.4 to 3.1.5 in /examples/flask-zip/app

Bumps [jinja2](https://github.com/pallets/jinja) from 3.1.4 to 3.1.5.
- [Release notes](https://github.com/pallets/jinja/releases)
- [Changelog](https://github.com/pallets/jinja/blob/main/CHANGES.rst)
- [Commits](pallets/jinja@3.1.4...3.1.5)

---
updated-dependencies:
- dependency-name: jinja2
  dependency-type: direct:production
...

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

Author: dependabot[bot]

examples/flask-zip/app/requirements.txt

@@ -4,7 +4,7 @@ Flask==2.3.2
 gunicorn==22.0.0
 importlib-metadata==6.6.0
 itsdangerous==2.1.2
-Jinja2==3.1.4
+Jinja2==3.1.5
 MarkupSafe==2.1.2
 Werkzeug==3.0.6
 zipp==3.19.1