[release/6.0] improve SslStream tests on misconfigured systems (#65024)

* improve SslStream tests on misconfigured systems

* feedback from review

Co-authored-by: wfurt <[email protected]>

Author: github-actions[bot]

src/libraries/System.Net.Security/tests/FunctionalTests/ServerAsyncAuthenticateTest.cs

@@ -387,7 +387,7 @@ private async Task ServerAsyncSslHelper(
                     await clientAuthentication.WaitAsync(TestConfiguration.PassingTestTimeout);
                     _logVerbose.WriteLine("ServerAsyncAuthenticateTest.clientAuthentication complete.");
                 }
-                catch (Exception ex)
+                catch (AuthenticationException ex)
                 {
                     // Ignore client-side errors: we're only interested in server-side behavior.
                     _log.WriteLine("Client exception : " + ex);

src/libraries/System.Net.Security/tests/FunctionalTests/TestConfiguration.cs

@@ -13,7 +13,7 @@ namespace System.Net.Security.Tests
 {
     internal static class TestConfiguration
     {
-        public const int PassingTestTimeoutMilliseconds = 4 * 60 * 1000;
+        public const int PassingTestTimeoutMilliseconds = 1 * 60 * 1000;
         public static TimeSpan PassingTestTimeout => TimeSpan.FromMilliseconds(PassingTestTimeoutMilliseconds);
 
         public const string Realm = "TEST.COREFX.NET";