Update LinkedApplicationTests.cs (#35978)

src/Hosting/test/FunctionalTests/LinkedApplicationTests.cs

@@ -17,6 +17,7 @@ namespace Microsoft.AspNetCore.Hosting.FunctionalTests
     public class LinkedApplicationTests : LoggedTest
     {
         [Fact]
+        [QuarantinedTest("https://github.com/dotnet/aspnetcore/issues/35977")]
         public async Task LinkedApplicationWorks()
         {
             using (StartLog(out var loggerFactory))