Bump jinja2 from 3.1.2 to 3.1.3 in /docs (#576)

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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

docs/requirements.txt

@@ -7,7 +7,7 @@ colorama==0.4.6
 cssselect==1.2.0
 ghp-import==2.1.0
 idna==3.4
-Jinja2==3.1.2
+Jinja2==3.1.3
 lxml==4.9.3
 Markdown==3.4.4
 markdown2==2.4.10