chore(deps-dev): bump mkdocs-material from 7.1.6 to 7.1.7 (#464)

Bumps [mkdocs-material](https://github.com/squidfunk/mkdocs-material) from 7.1.6 to 7.1.7.
<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-7.1.7</h2>
<ul>
<li>Improved screen reader support</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/squidfunk/mkdocs-material/blob/master/docs/changelog.md">mkdocs-material's changelog</a>.</em></p>
<blockquote>
<h3>7.1.7 <!-- raw HTML omitted -->_ June 6, 2021<!-- raw HTML omitted --></h3>
<ul>
<li>Improved screen reader support</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/3d6cbc9d2918deb7ef7b37f7d3cbe708288c2f7a"><code>3d6cbc9</code></a> Updated dependencies</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/7485a612b61b529a75877fbb6b002c56e0d98fe4"><code>7485a61</code></a> Prepare 7.1.7 release</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/11fcf4f0ab29461b995039bc181488c09f542f74"><code>11fcf4f</code></a> Added aria labels to language and version selector</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/2a5ba14ebe2f10c862eb1d89d2f351ad6966ee52"><code>2a5ba14</code></a> Added aria-label to language selector button (<a href="https://github-redirect.dependabot.com/squidfunk/mkdocs-material/issues/2725">#2725</a>)</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/42500aafa24903f59eb8ad27826553a228d04ab0"><code>42500aa</code></a> Added aria labels to palette toggles</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/0dd483121a34259aa78b5f27bf97eb455fc50f40"><code>0dd4831</code></a> Added aria labels to footer links</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/a20139019f35fab4b355b971669a861748370e56"><code>a201390</code></a> Formatting</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/db83978d3245bfdf83508e649e4310686e00cd42"><code>db83978</code></a> Updated note on now removed Docker image for Insiders</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/86f49eb21c6e7343875ba0d535b8fb38711b73a1"><code>86f49eb</code></a> Updated dependencies</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/85d9a5659d247e6fdc9e40292c265630590e7957"><code>85d9a56</code></a> Updated Insiders changelog</li>
<li>Additional commits viewable in <a href="https://github.com/squidfunk/mkdocs-material/compare/7.1.6...7.1.7">compare view</a></li>
</ul>
</details>
<br />


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Author: dependabot[bot]

Diff for: poetry.lock

@@ -49,7 +49,7 @@ radon = "^4.5.0"
 xenon = "^0.7.3"
 flake8-eradicate = "^1.0.0"
 flake8-bugbear = "^21.3.2"
-mkdocs-material = "^7.1.6"
+mkdocs-material = "^7.1.7"
 mkdocs-git-revision-date-plugin = "^0.3.1"
 mike = "^0.6.0"