chore(deps-dev): Update mkdocs-material requirement from ~=9.5.14 to …

…~=9.5.15 in /gh-pages (#4467)

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-9.5.15</h2>
<ul>
<li>Reverted fix for transparent iframes (9.5.14)</li>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/6929">#6929</a>: Interference of social plugin and auto dark mode</li>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/6938">#6938</a>: Giscus shows dark background in light mode (9.5.14 regression)</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-9.5.15+insiders-4.53.3 (2024-03-23)</p>
<ul>
<li>Added support for font variants in social plugin</li>
<li>Improved resilience of font resolution in social plugin</li>
<li>Fixed tag listing sometimes not being auto-populated</li>
<li>Fixed tag listing scope not being correctly resolved</li>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/6941">#6941</a>: Meta plugin adding duplicate entries</li>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/6928">#6928</a>: Social plugin crashes for some fonts</li>
</ul>
<p>mkdocs-material-9.5.15 (2024-03-23)</p>
<ul>
<li>Reverted fix for transparent iframes (9.5.14)</li>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/6929">#6929</a>: Interference of social plugin and auto dark mode</li>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/6938">#6938</a>: Giscus shows dark background in light mode (9.5.14 regression)</li>
</ul>
<p>mkdocs-material-9.5.14+insiders-4.53.2 (2024-03-18)</p>
<ul>
<li>Fixed abort on first non-matching configuration in preview extension</li>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/6914">#6914</a>: Meta files take precedence over front matter</li>
</ul>
<p>mkdocs-material-9.5.14 (2024-03-18)</p>
<ul>
<li>Added support for hiding versions from selector when using mike</li>
<li>Added init system to improve signal handling in Docker image</li>
<li>Fixed edge cases in exclusion logic of info plugin</li>
<li>Fixed inability to reset pipeline in search plugin</li>
<li>Fixed syntax error in Finnish translations</li>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/6917">#6917</a>: UTF-8 encoding problems in blog plugin on Windows</li>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/6889">#6889</a>: Transparent iframes get background color</li>
</ul>
<p>mkdocs-material-9.5.13+insiders-4.53.1 (2024-03-06)</p>
<ul>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/6877">#6877</a>: Projects plugin computes incorrect path to assets</li>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/6869">#6869</a>: Blog plugin should emit warning on invalid related link</li>
</ul>
<p>mkdocs-material-9.5.13 (2024-03-06)</p>
<ul>
<li>Updated Slovak translations</li>
<li>Improved info plugin interop with projects plugin</li>
<li>Improved info plugin inclusion/exclusion logic</li>
<li>Fixed info plugin not gathering files recursively</li>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/6750">#6750</a>: Ensure info plugin packs up all necessary files</li>
</ul>
<p>mkdocs-material-9.5.12 (2024-02-29)</p>
<ul>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/6846">#6846</a>: Some meta tags removed on instant navigation (9.4.2 regression)</li>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/6823">#6823</a>: KaTex not rendering on instant navigation (9.5.5 regression)</li>
<li>Fixed <a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/6821">#6821</a>: Privacy plugin doesn't handle URLs with encoded characters</li>
</ul>
<p>mkdocs-material-9.5.11+insiders-4.53.0 (2024-02-24)</p>

</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/99d15d158f52e1503a90848eeb9fcb1a28a68def"><code>99d15d1</code></a> Prepare 9.5.15 release</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/92b3e1bbcd475868ec8b97fbd30409149571a711"><code>92b3e1b</code></a> Reverted fix for borders on iframes</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/1b2d48455d26ea51c4f0648cc67c37814f84d55a"><code>1b2d484</code></a> Documentation (<a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/6951">#6951</a>)</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/495c64e7193cceed338c00421efe781ab7fed668"><code>495c64e</code></a> Restructured funding goals</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/8addc95d9dfd68b61557a61e17f691544ee6d139"><code>8addc95</code></a> Added support for font variants in social plugin</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/3f09228249a360454e9dc4a7c10bdae5f62062eb"><code>3f09228</code></a> Documentation (<a href="https://redirect.github.com/squidfunk/mkdocs-material/issues/6933">#6933</a>)</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/66d450009db8255b3d485654c1436a2845a3ae78"><code>66d4500</code></a> Fixed interference of social plugin and auto dark mode</li>
<li>See full diff in <a href="https://github.com/squidfunk/mkdocs-material/compare/9.5.14...9.5.15">compare view</a></li>
</ul>
</details>
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</details>

gh-pages/requirements-dev.txt

@@ -1,4 +1,4 @@
 mkdocs~=1.5.3
 mkdocs-awesome-pages-plugin~=2.9.2
-mkdocs-material~=9.5.14
+mkdocs-material~=9.5.15
 mkdocs-git-revision-date-plugin~=0.3.2