.Net: Bump Handlebars.Net.Helpers from 2.4.5 to 2.4.6 in /dotnet (#9266)

Bumps
[Handlebars.Net.Helpers](https://github.com/Handlebars-Net/Handlebars.Net.Helpers)
from 2.4.5 to 2.4.6.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/Handlebars-Net/Handlebars.Net.Helpers/blob/master/CHANGELOG.md">Handlebars.Net.Helpers's
changelog</a>.</em></p>
<blockquote>
<h1>2.4.6 (09 October 2024)</h1>
<ul>
<li><a
href="https://redirect.github.com/Handlebars-Net/Handlebars.Net.Helpers/pull/101">#101</a>
- Upgrade System.Text.RegularExpressions to 4.3.1 to solve CVE [bug]
contributed by <a href="https://github.com/StefH">StefH</a></li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/Handlebars-Net/Handlebars.Net.Helpers/commit/57d579531e9cff81330b9c9bf2d9efe09ac40d46"><code>57d5795</code></a>
2.4.6</li>
<li><a
href="https://github.com/Handlebars-Net/Handlebars.Net.Helpers/commit/5691fa6f263192b4fdb4412ed9b8da4aefcddac3"><code>5691fa6</code></a>
Upgrade System.Text.RegularExpressions to 4.3.1 to solve CVE (<a
href="https://redirect.github.com/Handlebars-Net/Handlebars.Net.Helpers/issues/101">#101</a>)</li>
<li><a
href="https://github.com/Handlebars-Net/Handlebars.Net.Helpers/commit/57a3f19cd8e63b504c8e42060919de0399488d2f"><code>57a3f19</code></a>
Update README.md (fix NuGet and MyGet badges)</li>
<li>See full diff in <a
href="https://github.com/Handlebars-Net/Handlebars.Net.Helpers/compare/2.4.5...2.4.6">compare
view</a></li>
</ul>
</details>
<br />


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

dotnet/Directory.Packages.props

@@ -13,7 +13,7 @@
     <PackageVersion Include="Azure.Identity" Version="1.12.0" />
     <PackageVersion Include="Azure.Monitor.OpenTelemetry.Exporter" Version="1.3.0" />
     <PackageVersion Include="Azure.Search.Documents" Version="11.6.0" />
-    <PackageVersion Include="Handlebars.Net.Helpers" Version="2.4.5" />
+    <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" />