[enhancement]: Open TestResultsPublisher.exe or add Linux support for PublishTestResults Task

[cmotsn]

Task name

PublishTestResults

Describe your feature request here

Currently, there is no (documented) way to publish tests results from a Linux computer.

Because there is no documented code source for TestResultsPublisher.exe, we cannot look at the current implementation to try to rewrite it with Linux support.

It would be useful to have a way to publish test results from Linux, whether by using a Linux-compatible Task, or by knowing which APIs to call in order to publish tests independently of the OS.

[github-actions]

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