Bump jinja2 from 3.1.2 to 3.1.3 in /app

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](pallets/jinja@3.1.2...3.1.3)

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

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

app/requirements.txt

@@ -13,7 +13,7 @@ httptools==0.6.1
 httpx==0.26.0
 idna==3.6
 itsdangerous==2.1.2
-Jinja2==3.1.2
+Jinja2==3.1.3
 MarkupSafe==2.1.3
 orjson==3.9.10
 prometheus-client==0.19.0