Bump Microsoft.AspNetCore.Mvc.Testing from 10.0.7 to 10.0.8 (#1112)

Updated
[Microsoft.AspNetCore.Mvc.Testing](https://github.com/dotnet/dotnet)
from 10.0.7 to 10.0.8.

<details>
<summary>Release notes</summary>

_Sourced from [Microsoft.AspNetCore.Mvc.Testing's
releases](https://github.com/dotnet/dotnet/releases)._

No release notes found for this version range.

Commits viewable in [compare
view](https://github.com/dotnet/dotnet/commits).
</details>

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Directory.Packages.props

@@ -33,7 +33,7 @@
     <PackageVersion Include="Microsoft.AspNetCore.Identity.EntityFrameworkCore" Version="10.0.8" />
     <PackageVersion Include="Microsoft.AspNetCore.Identity.UI" Version="10.0.7" />
     <PackageVersion Include="Microsoft.AspNetCore.Mvc.Razor.RuntimeCompilation" Version="10.0.8" />
-    <PackageVersion Include="Microsoft.AspNetCore.Mvc.Testing" Version="10.0.7" />
+    <PackageVersion Include="Microsoft.AspNetCore.Mvc.Testing" Version="10.0.8" />
     <PackageVersion Include="Microsoft.CodeAnalysis.Common" Version="5.0.0" />
     <PackageVersion Include="Microsoft.CodeAnalysis.CSharp" Version="5.0.0" />
     <PackageVersion Include="Microsoft.EntityFrameworkCore.Sqlite" Version="10.0.8" />