Bump jinja2 from 3.0.3 to 3.1.3 in /requirements/py3.6

Bumps [jinja2](https://github.com/pallets/jinja) from 3.0.3 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@3.0.3...3.1.3)

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

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

requirements/py3.6/docs.txt

@@ -27,7 +27,7 @@ importlib-metadata==4.8.3 ; python_version < "3.8"
     #   -r requirements/docs.in
     #   sphinx
     #   sphinxcontrib-spelling
-jinja2==3.0.3
+jinja2==3.1.3
     # via sphinx
 lxml==4.5.2
     # via sphinx-material-saltstack