Bump jinja2 in /docs in the pip group across 1 directory

Bumps the pip group with 1 update in the /docs directory: [jinja2](https://github.com/pallets/jinja).


Updates `jinja2` from 3.1.4 to 3.1.5
- [Release notes](https://github.com/pallets/jinja/releases)
- [Changelog](https://github.com/pallets/jinja/blob/main/CHANGES.rst)
- [Commits](pallets/jinja@3.1.4...3.1.5)

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

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

docs/requirements.txt

@@ -7,7 +7,7 @@ docutils==0.21.2
 idna==3.10
 imagesize==1.4.1
 importlib-metadata==8.5.0
-Jinja2==3.1.4
+Jinja2==3.1.5
 markdown-it-py==3.0.0
 MarkupSafe==3.0.1
 mdit-py-plugins==0.4.2