Update jinja2 requirement from >=3.1.4 to >=3.1.6

Updates the requirements on [jinja2](https://github.com/pallets/jinja) to permit the latest version.
- [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-version: 3.1.6
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

docs/requirements.txt

@@ -1,4 +1,4 @@
 sphinx~=5.0
 sphinxcontrib-katex
 pytorch-sphinx-theme @ git+https://github.com/pytorch/pytorch_sphinx_theme.git
-jinja2>=3.1.4
+jinja2>=3.1.6