build: Bump jinja2 from 3.1.5 to 3.1.6 in /docs (#142)

Bumps [jinja2](https://github.com/pallets/jinja) from 3.1.5 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@3.1.5...3.1.6)

---
updated-dependencies:
- dependency-name: jinja2
  dependency-version: 3.1.6
  dependency-type: indirect
...

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

Author: dependabot[bot]

docs/requirements.txt

@@ -30,7 +30,7 @@ imagesize==1.3.0
     # via sphinx
 importlib-metadata==7.0.1
     # via sphinx
-jinja2==3.1.5
+jinja2==3.1.6
     # via sphinx
 livereload==2.6.3
     # via sphinx-autobuild