Bump Microsoft.AspNetCore.Components.WebAssembly.Authentication in /src

Bumps [Microsoft.AspNetCore.Components.WebAssembly.Authentication](https://github.com/dotnet/aspnetcore) from 7.0.14 to 7.0.15.
- [Release notes](https://github.com/dotnet/aspnetcore/releases)
- [Changelog](https://github.com/dotnet/aspnetcore/blob/main/docs/ReleasePlanning.md)
- [Commits](dotnet/aspnetcore@v7.0.14...v7.0.15)

---
updated-dependencies:
- dependency-name: Microsoft.AspNetCore.Components.WebAssembly.Authentication
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

src/IoTHub.Portal.Client/IoTHub.Portal.Client.csproj

@@ -39,7 +39,7 @@
 
     <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" Version="7.0.11" />
     <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="7.0.14" PrivateAssets="all" />
-    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.Authentication" Version="7.0.14" />
+    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.Authentication" Version="7.0.15" />
     <PackageReference Include="Toolbelt.Blazor.LoadingBar" Version="14.0.0" />
   </ItemGroup>