chore(deps-dev): bump mkdocs-material from 7.2.8 to 7.3.0 (#695)

Bumps [mkdocs-material](https://github.com/squidfunk/mkdocs-material) from 7.2.8 to 7.3.0.
<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-7.3.0</h2>
<ul>
<li>Added support for sticky navigation tabs</li>
<li>Added support for section index pages</li>
<li>Added support for removing generator notice</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>7.3.0 <!-- raw HTML omitted -->_ September 23, 2021<!-- raw HTML omitted --></h3>
<ul>
<li>Added support for sticky navigation tabs</li>
<li>Added support for section index pages</li>
<li>Added support for removing generator notice</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/ba1f021c7658e54d28f2737d0960f8258abfb320"><code>ba1f021</code></a> Prepare 7.3.0 release</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/9d8ebcd3f877fde4c6a3a0a53de7ff468af796b8"><code>9d8ebcd</code></a> Added missing distribution files</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/377b4d648f7e85476c342ee891bd37357820cb06"><code>377b4d6</code></a> Merge of Insiders features tied to 'Caribbean Red' funding goal</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/62742b4f0dba787687098693838171eebf469cad"><code>62742b4</code></a> Formatting</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/8fa40faf3c1ead3c00522260c778c753893b2ee8"><code>8fa40fa</code></a> Updated documentation for language overrides</li>
<li><a href="https://github.com/squidfunk/mkdocs-material/commit/174cb04ffee916cb431794455e2ea9b8995eb080"><code>174cb04</code></a> docs: clarify overriding of translations for non-English language</li>
<li>See full diff in <a href="https://github.com/squidfunk/mkdocs-material/compare/7.2.8...7.3.0">compare view</a></li>
</ul>
</details>
<br />


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Author: dependabot[bot]

Diff for: poetry.lock

@@ -50,7 +50,7 @@ radon = "^5.1.0"
 xenon = "^0.8.0"
 flake8-eradicate = "^1.1.0"
 flake8-bugbear = "^21.9.1"
-mkdocs-material = "^7.2.8"
+mkdocs-material = "^7.3.0"
 mkdocs-git-revision-date-plugin = "^0.3.1"
 mike = "^0.6.0"
 mypy = "^0.910"