Enable the upload of ETW traces to CLR CAP in Windows daily build

[daxian-dbw]

PR Summary

A variable group was created that contains the variable CapIngressToken, which stores the ingress token used for the upload.
Update the windows-daily.yml file to provide the ingress token when calling Stop-TraceCollection, so the upload can happen.

Here is the build that validated the changes in this PR:
https://dev.azure.com/powershell/PowerShell/_build/results?buildId=54570&view=results

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[daxian-dbw]

Make this PR a draft because there seems to be an issue in uploading the trace to //CLRCAP.

[daxian-dbw]

@PoshChan Please retry static

[PoshChan]

@daxian-dbw, successfully started retry of PowerShell-CI-static-analysis

[daxian-dbw]

Contacted the CAP team and it turns out the trace files were uploaded correctly from my test runs of Windows-daily build (see below telemetry from the CAP side).
So the changes to windows-daily.yml is good to go.

[ghost]

🎉v7.1.0-preview.4 has been released which incorporates this pull request.:tada:

Handy links:

• Release Notes