build(deps): update jinja2 requirement in /docs in the pip group

Updates the requirements on [jinja2](https://github.com/pallets/jinja) to permit the latest version.

Updates `jinja2` 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@2.0rc1...3.1.4)

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

Signed-off-by: dependabot[bot] <[email protected]>

docs/requirements.txt

@@ -16,4 +16,4 @@ nwdiag==2.0.0
 recommonmark==0.7.0
 markdown>=3.0.1, <3.4.0
 sphinx-markdown-tables==0.0.15
-Jinja2<3.1
+Jinja2<3.2