Update BlazorWasmPreRendering.Build to version 8.1.0-preview.4

Author: jsakamoto

CUIFlavoredPortfolioSite/CUIFlavoredPortfolioSite.csproj

@@ -31,7 +31,7 @@
     <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="11.0.0-preview.3.*" PrivateAssets="all" />
     <PackageReference Include="Figgle" Version="0.5.1" />
     <PackageReference Include="CommandLineSwitchParser" Version="1.1.0" />
-    <PackageReference Include="BlazorWasmPreRendering.Build" Version="8.1.0-preview.3" />
+    <PackageReference Include="BlazorWasmPreRendering.Build" Version="8.1.0-preview.4" />
     <PackageReference Include="PublishSPAforGitHubPages.Build" Version="3.0.3" />
     <PackageReference Include="Microsoft.TypeScript.MSBuild" Version="5.9.3">
       <PrivateAssets>all</PrivateAssets>