[Android] Enable library smoke tests on CoreCLR Android

[kotlarmilos]

Description

Contributes to #115955

[Copilot]

Pull Request Overview

This PR enables the library smoke tests on CoreCLR Android by reactivating the previously commented postBuildSteps.

• Uncomment postBuildSteps to run tests using the helix.yml template
• Activate the conditional execution for these steps based on relevant variables

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[kotlarmilos]

The android-x64 coreclr job took 57min.

[jkotas]

The android-x64 coreclr job took 57min.

The long times and timeouts only showed up once android-x64 coreclr job started running on most PRs. Do you believe that we have addressed the underlying eng infrastructure issue?

If you are not sure, we can try to enable this again and monitor it.

[steveisok]

The android-x64 coreclr job took 57min.

The long times and timeouts only showed up once android-x64 coreclr job started running on most PRs. Do you believe that we have addressed the underlying eng infrastructure issue?

If you are not sure, we can try to enable this again and monitor it.

I'm for enabling and monitoring. The problem before was that no machines were running to service work items. It is a bit perplexing that the send to helix step took 20+ min and the 3 work items that were executed took 1-2 min each (all on different machines).

[kotlarmilos]

Yes, let's monitor this. I haven’t closed the tracking issue yet. I’ll start sampling and reporting job times, and if there are no timeouts by the end of the week, I’ll close it.