Bump jinja2 from 3.1.4 to 3.1.6 in /docs/sphinx

Bumps [jinja2](https://github.com/pallets/jinja) from 3.1.4 to 3.1.6.
- [Release notes](https://github.com/pallets/jinja/releases)
- [Changelog](https://github.com/pallets/jinja/blob/main/CHANGES.rst)
- [Commits](pallets/jinja@3.1.4...3.1.6)

---
updated-dependencies:
- dependency-name: jinja2
  dependency-type: indirect
...

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

Author: dependabot[bot]

docs/sphinx/requirements.txt

@@ -87,7 +87,7 @@ ipython==8.31.0
     #   myst-nb
 jedi==0.19.2
     # via ipython
-jinja2==3.1.4
+jinja2==3.1.6
     # via
     #   myst-parser
     #   sphinx