build(deps-dev): bump mkdocs-material from 9.7.5 to 9.7.6 in the patch group (#550)

Bumps the patch group with 1 update:
[mkdocs-material](https://github.com/squidfunk/mkdocs-material).

Updates `mkdocs-material` from 9.7.5 to 9.7.6
<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-9.7.6</h2>
<blockquote>
<p>[!WARNING]</p>
<p><strong>Material for MkDocs is in maintenance mode</strong></p>
<p>Going forward, the Material for MkDocs team focuses on <a
href="https://zensical.org">Zensical</a>, a next-gen static site
generator built from first principles. We will provide critical bug
fixes and security updates for Material for MkDocs until November
2026.</p>
<p><a
href="https://squidfunk.github.io/mkdocs-material/blog/2025/11/05/zensical/">Read
the full announcement on our blog</a></p>
</blockquote>
<h2>Changes</h2>
<ul>
<li>Automatically disable MkDocs 2.0 warning for forks of MkDocs</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-9.7.6 (2026-03-19)</p>
<ul>
<li>Automatically disable MkDocs 2.0 warning for forks of MkDocs</li>
</ul>
<p>mkdocs-material-9.7.5 (2026-03-10)</p>
<ul>
<li>Limited version range of mkdocs to &lt;2</li>
<li>Updated MkDocs 2.0 incompatibility warning (clarify relation with
MkDocs)</li>
</ul>
<p>mkdocs-material-9.7.4 (2026-03-03)</p>
<ul>
<li>Hardened social cards plugin by switching to sandboxed
environment</li>
<li>Updated MkDocs 2.0 incompatibility warning</li>
</ul>
<p>mkdocs-material-9.7.3 (2026-02-24)</p>
<ul>
<li>Fixed <a
href="https://redirect.github.com/squidfunk/mkdocs-material/issues/8567">#8567</a>:
Print MkDocs 2.0 incompatibility warning to stderr</li>
</ul>
<p>mkdocs-material-9.7.2 (2026-02-18)</p>
<ul>
<li>Opened up version ranges of optional dependencies for
forward-compatibility</li>
<li>Added warning to 'mkdocs build' about impending MkDocs 2.0
incompatibility</li>
</ul>
<p>mkdocs-material-9.7.1 (2025-12-18)</p>
<ul>
<li>Updated requests to 2.30+ to mitigate CVE in urllib</li>
<li>Fixed privacy plugin not picking up protocol-relative URLs</li>
<li>Fixed <a
href="https://redirect.github.com/squidfunk/mkdocs-material/issues/8542">#8542</a>:
false positives and negatives captured in privacy plugin</li>
</ul>
<p>mkdocs-material-9.7.0 (2025-11-11)</p>
<p>⚠️ Material for MkDocs is now in maintenance mode</p>
<p>This is the last release of Material for MkDocs that will receive new
features.
Going forward, the Material for MkDocs team focuses on Zensical, a
next-gen
static site generator built from first principles. We will provide
critical
bug fixes and security updates for Material for MkDocs for 12 months at
least.</p>
<p>Read the full announcement on our blog:
<a
href="https://squidfunk.github.io/mkdocs-material/blog/2025/11/05/zensical/">https://squidfunk.github.io/mkdocs-material/blog/2025/11/05/zensical/</a></p>
<p>This release includes all features that were previously exclusive to
the
Insiders edition. These features are now freely available to
everyone.</p>
<p>Note on deprecated plugins: The projects and typeset plugins are
included in
this release, but must be considered deprecated. Both plugins proved
unsustainable to maintain and represent architectural dead ends. They
are
provided as-is without ongoing support.</p>
<p>Changes:</p>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/squidfunk/mkdocs-material/commit/6c52ed6289b171a153875491f059a94819ec3e10"><code>6c52ed6</code></a>
Prepare 9.7.6 release</li>
<li><a
href="https://github.com/squidfunk/mkdocs-material/commit/51d9b76636431814df924bcda27485b16023978b"><code>51d9b76</code></a>
Automatically disable MkDocs 2.0 warning for forks of MkDocs</li>
<li><a
href="https://github.com/squidfunk/mkdocs-material/commit/6f9a48b4048650341a654d9757da57fc1e3e323d"><code>6f9a48b</code></a>
Updated links</li>
<li>See full diff in <a
href="https://github.com/squidfunk/mkdocs-material/compare/9.7.5...9.7.6">compare
view</a></li>
</ul>
</details>
<br />

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score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=mkdocs-material&package-manager=pip&previous-version=9.7.5&new-version=9.7.6)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

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Author: frequenz-auto-dependabot[bot]

pyproject.toml

@@ -83,7 +83,7 @@ dev-mkdocs = [
   "mkdocs-gen-files == 0.6.1",
   "mkdocs-literate-nav == 0.6.3",
   "mkdocs-macros-plugin == 1.5.0",
-  "mkdocs-material == 9.7.5",
+  "mkdocs-material == 9.7.6",
   "mkdocstrings[python] == 1.0.3",
   "mkdocstrings-python == 2.0.3",
 ]