Disable HTTP/3 LargeSingleHeader_ThrowsException Test Again (#100956)

Author: liveans

src/libraries/Common/tests/System/Net/Http/HttpClientHandlerTest.MaxResponseHeadersLength.cs

@@ -73,6 +73,12 @@ await LoopbackServerFactory.CreateClientAndServerAsync(async uri =>
         [InlineData(15)]
         public async Task LargeSingleHeader_ThrowsException(int maxResponseHeadersLength)
         {
+            if (UseVersion == HttpVersion30)
+            {
+                // [ActiveIssue("https://github.com/dotnet/runtime/issues/94507")]
+                return;
+            }
+
             using HttpClientHandler handler = CreateHttpClientHandler();
             handler.MaxResponseHeadersLength = maxResponseHeadersLength;