build(deps): bump jinja2 from 3.1.3 to 3.1.4 in /backend

Bumps [jinja2](https://github.com/pallets/jinja) from 3.1.3 to 3.1.4.
- [Release notes](https://github.com/pallets/jinja/releases)
- [Changelog](https://github.com/pallets/jinja/blob/main/CHANGES.rst)
- [Commits](pallets/jinja@3.1.3...3.1.4)

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

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

backend/requirements.txt

@@ -2,7 +2,7 @@ click==8.1.3
 Flask==2.2.5
 Flask-Cors==3.0.10
 itsdangerous==2.1.2
-Jinja2==3.1.3
+Jinja2==3.1.4
 MarkupSafe==2.1.1
 pymongo==4.1.1
 six==1.16.0