Timeout increased to 10 miliseconds (dotnet#35289)

Timeout increased to 10 milliseconds in Timeout_TooShort_AllPendingOperationsCanceled

Fixes dotnet#32818

src/libraries/System.Net.Http/tests/FunctionalTests/HttpClientTest.cs

@@ -607,7 +607,7 @@ public void Timeout_TooShort_AllPendingOperationsCanceled(HttpCompletionOption c
         {
             using (var client = new HttpClient(new CustomResponseHandler((r, c) => WhenCanceled<HttpResponseMessage>(c))))
             {
-                client.Timeout = TimeSpan.FromMilliseconds(1);
+                client.Timeout = TimeSpan.FromMilliseconds(10);
                 Task<HttpResponseMessage>[] tasks = Enumerable.Range(0, 3).Select(_ => client.GetAsync(CreateFakeUri(), completionOption)).ToArray();
                 Assert.All(tasks, task => {
                     OperationCanceledException e = Assert.ThrowsAny<OperationCanceledException>(() => task.GetAwaiter().GetResult());