Disable SendMailAsync_CanBeCanceled_CancellationToken for more runs

[karelz]

SendMailAsync_CanBeCanceled_CancellationToken is failing also on CoreCLR and on OSX - tracked by #73447

[ghost]

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Issue Details

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SendMailAsync_CanBeCanceled_CancellationToken is failing also on CoreCLR and on OSX - tracked by #73447

Author:	karelz
Assignees:	-
Labels:	area-System.Net
Milestone:	-

[karelz]

Unrelated failure in System.Net.Sockets.Tests:

  Discovering: System.Net.Sockets.Tests (method display = ClassAndMethod, method display options = None)
  Discovered:  System.Net.Sockets.Tests (found 1332 of 1711 test cases)
  Starting:    System.Net.Sockets.Tests (parallel test collections = on, max threads = 2)

...

Unhandled exception. System.TimeoutException: Timeout waiting for client connection.
   at System.Net.Sockets.Tests.SocketTestServerAsync.StartAccept(SocketAsyncEventArgs acceptEventArg) in /_/src/libraries/Common/tests/System/Net/Sockets/SocketTestServerAsync.cs:line 141
   at System.Net.Sockets.Tests.SocketTestServerAsync.ProcessAccept(SocketAsyncEventArgs e) in /_/src/libraries/Common/tests/System/Net/Sockets/SocketTestServerAsync.cs:line 178

[jkotas]

Unrelated failure in System.Net.Sockets.Tests

@karelz Do we have a tracking issue for it?