Fix System.Net.Sockets telemetry (#42188)

Fix System.Net.Sockets telemetry (#42188)

* Correct NameResolutionTelemetry logic

Taken from c4c9a2f99b7e339388199086d3014041abccc21e

* Enable listening to multiple sources with TestEventListener

* Workaround EventWrittenEventArgs bug when the EventArgs are stored

Workaround https://github.com/dotnet/runtime/issues/42128

* Correct System.Net.Sockets Telemetry

* Avoid using value tuple in TestEventListener

* Remove unnecessary argument to OnCompletedInternal

* Remove redundant Telemetry.IsEnabled check

* Log Connect/Accept start before the initial context capture

* Use SocketHelperBase in Accept tests

* Avoid duplicate events for BeginConnect without ConnextEx support

* Enable Sync Socket tests

* Revert unrelated SocketPal change

* Log the correct ErrorCode in case of socket disposal

* Add more info on TelemetryTest timeout

* Add PlatformSpecific attribute to ConnectFailure test

* Add missing BeginConnect AfterConnect call on sync failure

* Add comment around GetHelperBase

* Correct WaitForEventCountersAsync helper

* Assert against SocketError.TimedOut in ConnectFailed test

* Add EndConnect comment

* Log Failure around sync SocketPal exceptions

* Don't assert that the exception message is empty

* Dispose socket in a different Thread

* Disable Telemetry failure tests for Sync on RedHat7

* Use more descriptive names in MemberData generation

* Avoid using reflection for #42128 workaround

* Remove ConnectCanceled event