Bump Microsoft.NET.Sdk.WebAssembly.Pack from 8.0.18 to 9.0.8

---
updated-dependencies:
- dependency-name: Microsoft.NET.Sdk.WebAssembly.Pack
  dependency-version: 9.0.8
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

src/BlazorApp/BlazorApp.Client/BlazorApp.Client.csproj

@@ -20,6 +20,7 @@
   </ItemGroup>
 
   <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Sdk.WebAssembly.Pack" Version="9.0.8" />
     <Content Update="Pages\Counter.razor">
       <ExcludeFromSingleFile>true</ExcludeFromSingleFile>
     </Content>