chore(deps-dev): Update mkdocs-material requirement from ~=9.6.15 to ~=9.6.16 in /gh-pages (#4881)

Updates the requirements on [mkdocs-material](https://github.com/squidfunk/mkdocs-material) to permit the latest version.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/squidfunk/mkdocs-material/releases">mkdocs-material's releases</a>.</em></p>
<blockquote>
<h2>mkdocs-material-9.6.16</h2>
<ul>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/8349">#8349</a>: Info plugin doesn't correctly detect virtualenv in some cases</li>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/8334">#8334</a>: Find-in-page detects matches in hidden search result list</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/squidfunk/mkdocs-material/blob/master/CHANGELOG">mkdocs-material's changelog</a>.</em></p>
<blockquote>
<p>mkdocs-material-9.6.16 (2025-07-26)</p>
<ul>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/8349">#8349</a>: Info plugin doesn't correctly detect virtualenv in some cases</li>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/8334">#8334</a>: Find-in-page detects matches in hidden search result list</li>
</ul>
<p>mkdocs-material-9.6.15 (2025-07-01)</p>
<ul>
<li>Updated Mongolian translations</li>
<li>Improved semantic markup of &quot;edit this page&quot; button</li>
<li>Improved info plugin virtual environment resolution</li>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/8291">#8291</a>: Large font size setting throws of breakpoints in JavaScript</li>
</ul>
<p>mkdocs-material-9.6.14 (2025-05-13)</p>
<ul>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/8215">#8215</a>: Social plugin crashes when CairoSVG is updated to 2.8</li>
</ul>
<p>mkdocs-material-9.6.13 (2025-05-10)</p>
<ul>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/8204">#8204</a>: Annotations showing list markers in print view</li>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/8153">#8153</a>: Improve style of cardinality symbols in Mermaid.js ER diagrams</li>
</ul>
<p>mkdocs-material-9.6.12 (2025-04-17)</p>
<ul>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/8158">#8158</a>: Flip footnote back reference icon for right-to-left languages</li>
</ul>
<p>mkdocs-material-9.6.11 (2025-04-01)</p>
<ul>
<li>Updated Docker image to latest Alpine Linux</li>
<li>Bump required Jinja version to 3.1</li>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/8133">#8133</a>: Jinja filter <code>items</code> not available (9.6.10 regression)</li>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/8128">#8128</a>: Search plugin not entirely disabled via enabled setting</li>
</ul>
<p>mkdocs-material-9.6.10 (2025-03-30)</p>
<p>This version is a pure refactoring release, and does not contain new features
or bug fixes. It strives to improve the compatibility of our templates with
alternative Jinja-like template engines that we're currently exploring,
including minijinja.</p>
<p>Additionally, it replaces several instances of Python function invocations
with idiomatic use of template filters. All instances where variables have
been mutated inside templates have been replaced. Most changes have been made
in partials, and only a few in blocks, and all of them are fully backward
compatible, so no changes to overrides are necessary.</p>
<p>Note that this release does not replace the Jinja template engine with
minijinja. However, our templates are now 99% compatible with minijinja,
which means we can explore alternative Jinja-compatible implementations.
Additionally, immutability and removal of almost all Python function
invocations means much more idiomatic templating.</p>

</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/8b949816ba16ad46e7c4c72912e5bd8c6254dcfd"><code>8b94981</code></a> Prepare 9.6.16 release</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/e5c7ab542745013397b7e7b284960ed57de306c1"><code>e5c7ab5</code></a> Updated dependencies</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/53385529f0481e89ff6fba49f855fd0dbbd16cdb"><code>5338552</code></a> Fixed handling of inconsistent drive letter case</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/6d4f756461dd556e459d4769d6e1ec7ce7bce4ae"><code>6d4f756</code></a> Fixed dotpath venv guessing</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/88bdcf5f16696eb540fcbf8bc24244dc1c5f965f"><code>88bdcf5</code></a> Fixed empty username fallback</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/d0c4bd618fd01b849ba85aee5275c23481214eea"><code>d0c4bd6</code></a> Merge pull request <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/8346">#8346</a> from squidfunk/dependabot/npm_and_yarn/form-data-3.0.4</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/9c1e4deb5c96c6baa076431f0cb4ede20ba35fab"><code>9c1e4de</code></a> Bump form-data from 3.0.1 to 3.0.4</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/b2d235eb65d717202fedbe70c6856f2560e66c40"><code>b2d235e</code></a> Updated Premium sponsors</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/e54ff0632c46e811e6adc7a104c0bd567ed22fc0"><code>e54ff06</code></a> Updated Premium sponsors</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/212b7ab8f74a78a56e8f09b032633bc69289639a"><code>212b7ab</code></a> Updated Premium sponsors</li>
<li>Additional commits viewable in <a href="https://github.com/squidfunk/mkdocs-material/compare/9.6.15...9.6.16">compare view</a></li>
</ul>
</details>
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Author: dependabot[bot]

gh-pages/requirements-dev.txt

@@ -1,4 +1,4 @@
 mkdocs~=1.6.1
 mkdocs-awesome-pages-plugin~=2.10.1
-mkdocs-material~=9.6.15
+mkdocs-material~=9.6.16
 mkdocs-git-revision-date-plugin~=0.3.2