.Net: Bump HtmlAgilityPack from 1.11.67 to 1.11.71 in /dotnet (#9914)

Bumps
[HtmlAgilityPack](https://github.com/zzzprojects/html-agility-pack) from
1.11.67 to 1.11.71.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/zzzprojects/html-agility-pack/releases">HtmlAgilityPack's
releases</a>.</em></p>
<blockquote>
<h2>v1.11.71</h2>
<h2>Download the library <strong><a
href="https://www.nuget.org/packages/HtmlAgilityPack/">here</a></strong></h2>
<ul>
<li><strong>MERGED:</strong> Pull Request - Fix AOT warning with
HtmlNode.GetAttributeValue <a
href="https://redirect.github.com/zzzprojects/html-agility-pack/issues/573">#573</a></li>
<li><strong>ADDED:</strong> New option
<code>OptionEnableBreakLineForInnerText = true</code>, when enabled the
<code>br</code> tag will cause a break line for the
<code>InnerText</code></li>
</ul>
<hr />
<h2>Library Sponsored By</h2>
<p>This library is sponsored by <a
href="https://entityframework-extensions.net/">Entity Framework
Extensions</a></p>
<!-- raw HTML omitted -->
<h2>v1.11.70</h2>
<h2>Download the library <strong><a
href="https://www.nuget.org/packages/HtmlAgilityPack/">here</a></strong></h2>
<ul>
<li><strong>RENAMED:</strong> The option added in v1.11.67 from
<code>OptionThreatCDataBlockAsComment</code> to
<code>OptionTreatCDataBlockAsComment</code></li>
</ul>
<hr />
<h2>Library Sponsored By</h2>
<p>This library is sponsored by <a
href="https://entityframework-extensions.net/">Entity Framework
Extensions</a></p>
<!-- raw HTML omitted -->
<h2>v1.11.69</h2>
<h2>Download the library <strong><a
href="https://www.nuget.org/packages/HtmlAgilityPack/">here</a></strong></h2>
<ul>
<li><strong>FIXED:</strong> Added the right dll, the v1.11.68 was still
containing the dll from v1.11.67</li>
</ul>
<hr />
<h2>Library Sponsored By</h2>
<p>This library is sponsored by <a
href="https://entityframework-extensions.net/">Entity Framework
Extensions</a></p>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li>See full diff in <a
href="https://github.com/zzzprojects/html-agility-pack/commits/v1.11.71">compare
view</a></li>
</ul>
</details>
<br />


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</details>

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

dotnet/Directory.Packages.props

@@ -29,7 +29,7 @@
     <PackageVersion Include="Handlebars.Net.Helpers" Version="2.4.6" />
     <PackageVersion Include="Markdig" Version="0.37.0" />
     <PackageVersion Include="Handlebars.Net" Version="2.1.6" />
-    <PackageVersion Include="HtmlAgilityPack" Version="1.11.67" />
+    <PackageVersion Include="HtmlAgilityPack" Version="1.11.71" />
     <PackageVersion Include="Microsoft.AspNet.WebApi.Client" Version="6.0.0" />
     <PackageVersion Include="JsonSchema.Net" Version="5.4.2" />
     <PackageVersion Include="Microsoft.Azure.Functions.Worker" Version="1.20.1" />