Publish zipped product build bits like we do for test artifacts (dotnet/coreclr#27540)

Publish zipped product build bits like we do for test artifacts (dotnet/coreclr#27540)

I have renamed xplat-test-job to xplat-pipeline-job. In perf-job
I duplicated a few variables from xplat-pipeline-job as the job
is currently based on a completely different YAML file hierarchy.
It would be probably useful to unify these two at some point but
I believe it to be beyond the scope of my simple cleanup w.r.t.
product build manipulation.

Thanks

Tomas

Commit migrated from https://github.com/dotnet/coreclr/commit/9970bccb5ea8dee5e449845bff93e3677810a2dd