Bump Microsoft.AspNetCore.TestHost from 6.0.15 to 6.0.24

Bumps [Microsoft.AspNetCore.TestHost](https://github.com/dotnet/aspnetcore) from 6.0.15 to 6.0.24.
- [Release notes](https://github.com/dotnet/aspnetcore/releases)
- [Changelog](https://github.com/dotnet/aspnetcore/blob/main/docs/ReleasePlanning.md)
- [Commits](dotnet/aspnetcore@v6.0.15...v6.0.24)

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

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

src/Authentication/Tests/Monai.Deploy.Security.Authentication.Tests.csproj

@@ -24,7 +24,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.TestHost" Version="6.0.15" />
+    <PackageReference Include="Microsoft.AspNetCore.TestHost" Version="6.0.24" />
     <PackageReference Include="Microsoft.Extensions.Hosting" Version="6.0.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.7.2" />
     <PackageReference Include="xunit" Version="2.4.2" />