Bump jinja2 from 3.1.3 to 3.1.4 in /backend/docker

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] <[email protected]>

backend/docker/requirements.txt

@@ -134,7 +134,7 @@ isort==5.10.1
     # via -r requirements.in
 itypes==1.2.0
     # via coreapi
-jinja2==3.1.3
+jinja2==3.1.4
     # via
     #   -r requirements.in
     #   coreschema