chore(deps-dev): Update mkdocs-material requirement from ~=9.5.27 to …

…~=9.5.28 in /gh-pages (#4563)

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-9.5.28</h2>
<ul>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/7313">#7313</a>: Improved tooltips mounted in sidebar when feature is disabled</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-9.5.28 (2024-07-02)</p>
<ul>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/7313">#7313</a>: Improved tooltips mounted in sidebar when feature is disabled</li>
</ul>
<p>mkdocs-material-9.5.27 (2024-06-16)</p>
<ul>
<li>Updated Estonian translations</li>
</ul>
<p>mkdocs-material-9.5.26 (2024-06-06)</p>
<ul>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/7232">#7232</a>: Tab switches on scroll when linking tabs (9.5.19 regression)</li>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/7230">#7230</a>: Blog author avatar broken when referring to local file</li>
</ul>
<p>mkdocs-material-9.5.25+insiders-4.53.11 (2024-05-27)</p>
<ul>
<li>Fixed projects plugin crashing when serving before building subprojects</li>
</ul>
<p>mkdocs-material-9.5.25 (2024-05-27)</p>
<ul>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/7209">#7209</a>: Tags plugin crashing on numeric tags</li>
</ul>
<p>mkdocs-material-9.5.24+insiders-4.53.10 (2024-05-20)</p>
<ul>
<li>Fixed projects plugin crashing in serve mode when disabled</li>
<li>Fixed projects plugin crashing when building nested projects</li>
</ul>
<p>mkdocs-material-9.5.24+insiders-4.53.9 (2024-05-20)</p>
<ul>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/7191">#7191</a>: Tags listings not rendering when toc_depth is changed</li>
</ul>
<p>mkdocs-material-9.5.24 (2024-05-20)</p>
<ul>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/7187">#7187</a>: Version selector title rendering issue</li>
</ul>
<p>mkdocs-material-9.5.23 (2024-05-15)</p>
<ul>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/7183">#7183</a>: Edge case in anchor navigation when using instant navigation</li>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/6436">#6436</a>: Version selector not showing version alias</li>
</ul>
<p>mkdocs-material-9.5.22 (2024-05-12)</p>
<ul>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/7170">#7170</a>: Copy button adds empty lines for line spans (9.5.18 regression)</li>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/7160">#7160</a>: Version switching doesn't stay on page (9.5.5 regression)</li>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/5619">#5619</a>: Links in Mermaid.js diagrams not discernible</li>
</ul>
<p>mkdocs-material-9.5.21 (2024-05-03)</p>
<ul>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/7133">#7133</a>: Ensure latest version of Mermaid.js is used</li>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/7125">#7125</a>: Added warning for dotfiles in info plugin</li>
</ul>

</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/1b78c2c5cc1c430c4923d43d5a5c27c9efffc1b4"><code>1b78c2c</code></a> Prepare 9.5.28 release</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/c5fd98c94e6e6eea3d3db88832827729b10a564f"><code>c5fd98c</code></a> Fixed links in sponsors section</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/fa04d0ca6324282ff11e1033c0743e76ae7f3af4"><code>fa04d0c</code></a> Updated dependencies</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/845fc610b0b65842538997eac8d1c3eb05ac82f7"><code>845fc61</code></a> Fixed improved tooltips mounted when disabled</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/12a8e82837fe400dd1f123e41d75b32987a11744"><code>12a8e82</code></a> Removed all references to polyfill.io</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/436860fe1725b22659aa00e1839763ba220c140b"><code>436860f</code></a> Bump docker/build-push-action from 5 to 6</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/b0484699f7b860751b7926de95e2d30d781b847d"><code>b048469</code></a> Switched to ES2018 target</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/eff555a669d420318151befc4a79bd9f747687da"><code>eff555a</code></a> Updated dependencies</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/610be26e6c9b902c465c313709de7ae9498795f5"><code>610be26</code></a> Updated README</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/f1ffead06ae6858584969462563bb09ab918041f"><code>f1ffead</code></a> Documentation</li>
<li>Additional commits viewable in <a href="https://github.com/squidfunk/mkdocs-material/compare/9.5.27...9.5.28">compare view</a></li>
</ul>
</details>
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</details>

gh-pages/requirements-dev.txt

@@ -1,4 +1,4 @@
 mkdocs~=1.6.0
 mkdocs-awesome-pages-plugin~=2.9.2
-mkdocs-material~=9.5.27
+mkdocs-material~=9.5.28
 mkdocs-git-revision-date-plugin~=0.3.2