Bump UTF.Unknown from 2.3.0 to 2.4.0

Bumps [UTF.Unknown](https://github.com/CharsetDetector/UTF-unknown) from 2.3.0 to 2.4.0.
- [Release notes](https://github.com/CharsetDetector/UTF-unknown/releases)
- [Commits](https://github.com/CharsetDetector/UTF-unknown/compare/v2.3...v2.4)

---
updated-dependencies:
- dependency-name: UTF.Unknown
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

MediaBrowser.MediaEncoding/MediaBrowser.MediaEncoding.csproj

@@ -26,7 +26,7 @@
     <PackageReference Include="libse" Version="3.6.0" />
     <PackageReference Include="Microsoft.Extensions.Http" Version="5.0.0" />
     <PackageReference Include="System.Text.Encoding.CodePages" Version="5.0.0" />
-    <PackageReference Include="UTF.Unknown" Version="2.3.0" />
+    <PackageReference Include="UTF.Unknown" Version="2.4.0" />
   </ItemGroup>
 
   <!-- Code Analyzers-->