Bump jinja2 from 3.1.3 to 3.1.5 in /docs in the pip group

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


Updates `jinja2` from 3.1.3 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@3.1.3...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==0.20.1
 idna==3.7
 imagesize==1.4.1
 importlib-metadata==6.7.0
-Jinja2==3.1.3
+Jinja2==3.1.5
 markdown-it-py==3.0.0
 MarkupSafe==2.1.3
 mdit-py-plugins==0.4.0