add System.Net.Http.WasmEnableStreamingResponse to RuntimeHostConfigurationOption

[pavelsavara]

make sure that GenerateRuntimeConfigurationFiles would get proper value

Contributes to dotnet/runtime#113628

[Copilot]

Pull Request Overview

This PR adds support for the System.Net.Http.WasmEnableStreamingResponse runtime configuration option to ensure proper value propagation during runtime configuration file generation. This change contributes to addressing runtime issue #113628.

• Adds a new RuntimeHostConfigurationOption entry for WASM streaming response configuration
• Follows the established pattern of other HTTP-related configuration options in the same file

Comments suppressed due to low confidence (1)

src/Tasks/Microsoft.NET.Build.Tasks/targets/Microsoft.NET.Sdk.targets:623

• This new runtime configuration option should include corresponding test coverage to verify that the option is properly included when WasmEnableStreamingResponse is set and excluded when it's empty.

    <RuntimeHostConfigurationOption Include="System.Net.Http.WasmEnableStreamingResponse"

[akoeplinger]

We should probably add a test in https://github.com/dotnet/sdk/blob/70c66f750552cfd28a53d736fe45e373f0db7692/test/TestAssets/TestProjects/KitchenSink/TestApp/TestApp.csproj for

sdk/test/Microsoft.NET.Publish.Tests/GivenThatWeWantToPublishAProjectWithAllFeatures.cs

Line 21 in 70c66f7

public void It_publishes_the_project_correctly(string targetFramework, string[] expectedPublishFiles)