Bump jinja2 from 3.1.2 to 3.1.3 in /docs (#6597)

Bumps [jinja2](https://github.com/pallets/jinja) from 3.1.2 to 3.1.3.
- [Release notes](https://github.com/pallets/jinja/releases)
- [Changelog](https://github.com/pallets/jinja/blob/main/CHANGES.rst)
- [Commits](pallets/jinja@3.1.2...3.1.3)

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

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

docs/requirements.txt

@@ -1,6 +1,6 @@
 docutils==0.20.1
 furo==2023.9.10
-jinja2==3.1.2
+jinja2==3.1.3
 m2r2==0.3.3.post2
 matplotlib==3.7.3
 nbsphinx==0.9.3