chore(deps-dev): update mkdocs-material requirement from ~=8.1.4 to ~…

…=8.1.6 in /gh-pages (#3336)

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-8.1.6</h2>
<ul>
<li>Fixed spacing of blockquotes (8.1.5 regression)</li>
<li>Fixed edge cases for rounded corners on code blocks (8.1.5 regression)</li>
<li>Fixed issues with code annotation line heights</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-8.1.6-insiders-4.6.0 (2022-01-11)</p>
<ul>
<li>Added support for annotations (outside of code blocks)</li>
</ul>
<p>mkdocs-material-8.1.6 (2022-01-11)</p>
<ul>
<li>Fixed spacing of blockquotes (8.1.5 regression)</li>
<li>Fixed edge cases for rounded corners on code blocks (8.1.5 regression)</li>
<li>Fixed rendering issues with code annotation line heights</li>
</ul>
<p>mkdocs-material-8.1.5 (2022-01-09)</p>
<ul>
<li>Improved browser support: Chrome 49+, Safari 10+, Firefox 53+, Edge 79+</li>
<li>Improved rendering of inline code blocks in headlines</li>
<li>Added Bahasa Malaysian translations</li>
<li>Fixed <a href="https://github-redirect.dependabot.com/squidfunk/mkdocs-material/issues/3354">#3354</a>: MathJax formulas show vertical scrollbar</li>
</ul>
<p>mkdocs-material-8.1.4+insiders-4.5.2 (2022-01-08)</p>
<ul>
<li>Fixed <a href="https://github-redirect.dependabot.com/squidfunk/mkdocs-material/issues/3440">#3440</a>: Content tab indicator not moving when using linking</li>
<li>Fixed <a href="https://github-redirect.dependabot.com/squidfunk/mkdocs-material/issues/3445">#3445</a>: Content tab switch flickers/jitters when using linking</li>
</ul>
<p>mkdocs-material-8.1.4+insiders-4.5.1 (2022-01-02)</p>
<ul>
<li>Added support for setting initial state of cookie consent</li>
<li>Fixed <a href="https://github-redirect.dependabot.com/squidfunk/mkdocs-material/issues/3396">#3396</a>: Disappearing link in navigation due to Safari bug</li>
</ul>
<p>mkdocs-material-8.1.4 (2022-01-02)</p>
<ul>
<li>Added indicator to navigation expander icon</li>
<li>Improved support for reduced motion preference</li>
<li>Fixed jitter of active content tab indicator</li>
</ul>
<p>mkdocs-material-8.1.3 (2021-12-19)</p>
<ul>
<li>Added animation to active content tab indicator</li>
<li>Fixed <a href="https://github-redirect.dependabot.com/squidfunk/mkdocs-material/issues/3360">#3360</a>: Highlighted lines add blank lines in copied text</li>
<li>Fixed usage of subsequent index files when using section index pages</li>
</ul>
<p>mkdocs-material-8.1.2+insiders-4.5.0 (2021-12-16)</p>
<ul>
<li>Added support for navigation icons</li>
</ul>
<p>mkdocs-material-8.1.2 (2021-12-15)</p>
<ul>
<li>Switched CSS sources to logical properties</li>
<li>Added transformation of logical properties to ltr/rtl equivalents</li>
<li>Fixed spacing for admonitions inside lists (8.1.1 regression)</li>
</ul>
<p>mkdocs-material-8.1.1 (2021-12-13)</p>

</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/f5a98fc4010e21acbb750f2d8362461a3b2e087e"><code>f5a98fc</code></a> Prepare 8.1.6 release</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/bcf2f7839463005b0238901be9e8054b920d36cc"><code>bcf2f78</code></a> Fixed blockquote spacing (8.1.5 regression)</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/73331ee78cd4b261962911d2b10a7d20ac6ed2e6"><code>73331ee</code></a> Fixed edge cases for rounded borders on code blocks</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/aa3440215ac4dbdbb6f2b5f81c9c02b44757b10b"><code>aa34402</code></a> Fixed overflow/clearfix issues for code result blocks</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/50408bf984ef4b7d503c748fa48fd929683ee4b5"><code>50408bf</code></a> Added new code block styles to reference documentation</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/ca1996b6681d35ba034181d744e08b8a4abe4383"><code>ca1996b</code></a> Updated distribution files</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/9655c3a92471f261533d48b8611a8d24dbfebb13"><code>9655c3a</code></a> Updated dependencies and bumped copyright year</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/cd0eb2355d228c201150d160aaa716f0410fb6d0"><code>cd0eb23</code></a> Added missing entry to changelog</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/97c920a1c56f3b5b07ec3d4506a481613fd9f092"><code>97c920a</code></a> Fixed issues with code annotation line height</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/d5fb8f1770920d4e86ca9870997e1d71c19c26dc"><code>d5fb8f1</code></a> Prepare 8.1.5 release</li>
<li>Additional commits viewable in <a href="https://github.com/squidfunk/mkdocs-material/compare/8.1.4...8.1.6">compare view</a></li>
</ul>
</details>
<br />


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</details>

gh-pages/requirements-dev.txt

@@ -1,4 +1,4 @@
 mkdocs~=1.2.3
 mkdocs-awesome-pages-plugin~=2.6.0
-mkdocs-material~=8.1.4
+mkdocs-material~=8.1.6
 mkdocs-git-revision-date-plugin~=0.3.1