Bump mkdocs-material from 9.1.14 to 9.1.15 (#411)

Bumps [mkdocs-material](https://github.com/squidfunk/mkdocs-material)
from 9.1.14 to 9.1.15.
<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-9.1.15</h2>
<ul>
<li>Fixed <a
href="https://redirect.github.com/squidfunk/mkdocs-material/issues/5566">#5566</a>:
Indicate color scheme to operating system</li>
<li>Fixed <a
href="https://redirect.github.com/squidfunk/mkdocs-material/issues/5565">#5565</a>:
Update <code>Dockerfile</code> to latest version of base image</li>
<li>Fixed <a
href="https://redirect.github.com/squidfunk/mkdocs-material/issues/5554">#5554</a>:
Add additional version tags (<code>9</code>, <code>9.1</code>) to Docker
image</li>
<li>Fixed <a
href="https://redirect.github.com/squidfunk/mkdocs-material/issues/5536">#5536</a>:
Strip tags of ARIA labels in table of contents</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-9.1.15+insiders-4.35.2 (2023-05-29)</p>
<ul>
<li>Fixed <a
href="https://redirect.github.com/squidfunk/mkdocs-material/issues/5555">#5555</a>:
Blog plugin crashes when computing readtime for emojis</li>
</ul>
<p>mkdocs-material-9.1.15 (2023-05-29)</p>
<ul>
<li>Fixed <a
href="https://redirect.github.com/squidfunk/mkdocs-material/issues/5566">#5566</a>:
Indicate color scheme to operating system</li>
<li>Fixed <a
href="https://redirect.github.com/squidfunk/mkdocs-material/issues/5565">#5565</a>:
Update Dockerfile to latest version of base image</li>
<li>Fixed <a
href="https://redirect.github.com/squidfunk/mkdocs-material/issues/5554">#5554</a>:
Add additional version tags (9, 9.1) to Docker image</li>
<li>Fixed <a
href="https://redirect.github.com/squidfunk/mkdocs-material/issues/5536">#5536</a>:
Strip tags of ARIA labels in table of contents</li>
</ul>
<p>mkdocs-material-9.1.14+insiders-4.35.1 (2023-05-20)</p>
<ul>
<li>Fixed internal handling of errors in social plugin</li>
</ul>
<p>mkdocs-material-9.1.14+insiders-4.35.0 (2023-05-20)</p>
<ul>
<li>Improve editing experience and stability of social plugin</li>
<li>Added support for custom layout syntax validation in social
plugin</li>
<li>Added support for layer origin for easier placement in social
plugin</li>
<li>Added support for in- and exclusion patterns in social plugin</li>
<li>Catch and print syntax errors in custom layouts</li>
</ul>
<p>mkdocs-material-9.1.14 (2023-05-20)</p>
<ul>
<li>Updated Armenian and Greek translations</li>
</ul>
<p>mkdocs-material-9.1.13+insiders-4.34.1 (2023-05-16)</p>
<ul>
<li>Disable social plugin debug mode by default on mkdocs build</li>
<li>Added warning in social plugin debug mode when font style couldn't
be found</li>
<li>Set default concurrency of built-in multi-threaded plugins to CPUs -
1</li>
<li>Fixed <a
href="https://redirect.github.com/squidfunk/mkdocs-material/issues/5521">#5521</a>:
Social plugin triggers race condition when downloading fonts</li>
<li>Fixed <a
href="https://redirect.github.com/squidfunk/mkdocs-material/issues/5515">#5515</a>:
Social plugin crashes when concurrency is set to 1</li>
</ul>
<p>mkdocs-material-9.1.13 (2023-05-16)</p>
<ul>
<li>Fixed <a
href="https://redirect.github.com/squidfunk/mkdocs-material/issues/5517">#5517</a>:
Social plugin crashes for some fonts (e.g. Open Sans)</li>
</ul>
<p>mkdocs-material-9.1.12+insiders-4.34.0 (2023-05-14)</p>
<ul>
<li>Added support for new overflow mode to auto-fit text in social
plugin</li>
<li>Reduced subtle rendering bugs in (code) annotations due to subpixel
rounding</li>
<li>Improved print styles for (code) annotation lists</li>
<li>Improved performance of social plugin, now 3x as fast</li>
<li>Improved interop of typeset plugin with MkDocstrings</li>
<li>Fixed logo location for variants of default template in social
plugin</li>
<li>Fixed <a
href="https://redirect.github.com/squidfunk/mkdocs-material/issues/5446">#5446</a>:
Built-in typeset plugin picks up headings in code blocks</li>
</ul>
<p>mkdocs-material-9.1.12+insiders-4.33.2 (2023-05-12)</p>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/squidfunk/mkdocs-material/commit/06d1ba1337703bd6deed9b13b33516abc2e81b72"><code>06d1ba1</code></a>
Prepare 9.1.15 release</li>
<li><a
href="https://github.com/squidfunk/mkdocs-material/commit/3d706407d96fbc7d87b11f24da13d389e6879c36"><code>3d70640</code></a>
Updated dependencies</li>
<li><a
href="https://github.com/squidfunk/mkdocs-material/commit/0f1866b108d06eb18f9610f211439badb41cbca1"><code>0f1866b</code></a>
Documentation</li>
<li><a
href="https://github.com/squidfunk/mkdocs-material/commit/aa4befa429971e9e55af09c5021f9f9b2340a05d"><code>aa4befa</code></a>
Merge branch 'master' of github.com:squidfunk/mkdocs-material</li>
<li><a
href="https://github.com/squidfunk/mkdocs-material/commit/fe0c966a4da16861e3fbe9064afcae3cc3d7c6fa"><code>fe0c966</code></a>
Added color-scheme property to indicate color scheme to OS</li>
<li><a
href="https://github.com/squidfunk/mkdocs-material/commit/2fa92de28dd4f455f6206c958e79cbec1203bc98"><code>2fa92de</code></a>
Merge pull request <a
href="https://redirect.github.com/squidfunk/mkdocs-material/issues/5565">#5565</a>
from yubiuser/update_docker</li>
<li><a
href="https://github.com/squidfunk/mkdocs-material/commit/7c19f464ad5b42bb2497785b3a12ecc0daa95206"><code>7c19f46</code></a>
Only user major.minor for python version</li>
<li><a
href="https://github.com/squidfunk/mkdocs-material/commit/f37702a8fbb62ee35e45f57a462d8be540856c44"><code>f37702a</code></a>
Added major.minor and major tags to Docker image</li>
<li><a
href="https://github.com/squidfunk/mkdocs-material/commit/e0b3022be64456442aa51a90c57a8530998d576e"><code>e0b3022</code></a>
Update Dockerfile to latest alpine</li>
<li><a
href="https://github.com/squidfunk/mkdocs-material/commit/f84725d4fcd8960090063d58f18fb01973b55370"><code>f84725d</code></a>
Added tutorial on building custom social cards</li>
<li>Additional commits viewable in <a
href="https://github.com/squidfunk/mkdocs-material/compare/9.1.14...9.1.15">compare
view</a></li>
</ul>
</details>
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Author: daniel-zullo-frequenz

pyproject.toml

@@ -47,7 +47,7 @@ docs-gen = [
   "mike == 1.1.2",
   "mkdocs-gen-files == 0.5.0",
   "mkdocs-literate-nav == 0.6.0",
-  "mkdocs-material == 9.1.14",
+  "mkdocs-material == 9.1.15",
   "mkdocs-section-index == 0.3.5",
   "mkdocstrings[python] == 0.21.2",
 ]