build(deps): bump Microsoft.FluentUI.AspNetCore.Components.Icons

Bumps [Microsoft.FluentUI.AspNetCore.Components.Icons](https://github.com/microsoft/fluentui-blazor) from 4.0.0 to 4.2.1.
- [Release notes](https://github.com/microsoft/fluentui-blazor/releases)
- [Changelog](https://github.com/microsoft/fluentui-blazor/blob/dev/WHATSNEW.md)
- [Commits](microsoft/fluentui-blazor@v4.0.0...V4.2.1)

---
updated-dependencies:
- dependency-name: Microsoft.FluentUI.AspNetCore.Components.Icons
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Directory.Packages.props

@@ -10,7 +10,7 @@
     <PackageVersion Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="8.0.0" PrivateAssets="all" />
     <PackageVersion Include="Microsoft.Extensions.Options" Version="8.0.0" />
     <PackageVersion Include="Microsoft.FluentUI.AspNetCore.Components" Version="4.2.1" />
-    <PackageVersion Include="Microsoft.FluentUI.AspNetCore.Components.Icons" Version="4.0.0" />
+    <PackageVersion Include="Microsoft.FluentUI.AspNetCore.Components.Icons" Version="4.2.1" />
     <PackageVersion Include="Newtonsoft.Json" Version="13.0.3" />
     <PackageVersion Include="NuGet.Versioning" Version="6.8.0" />
     <PackageVersion Include="PublishSPAforGitHubPages.Build" Version="2.1.0" />