Modified test to allow for validation

[vsinghai]

Changes

Prior to this commit, the previous iteration
of this test set the PipelineRun status to True,
essentially allowing the PipelineRun execute
without any validation. Furthermore, the test did
not test for the various embedded.status.

In this commit, we add implementation to test for
Pipeline Results which allow for validation to
execute by setting the PipelineRun status to Unknown.
Also, the test accounts for the different embedded.status.

Fixes bug #5283

/kind bug
/cc @jerop

Submitter Checklist

As the author of this PR, please check off the items in this checklist:

• Has Docs included if any changes are user facing
• Has Tests included if any functionality added or changed
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  functionality, content, code)
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• Release notes contains the string "action required" if the change requires additional action from users switching to the new release

Release Notes

NONE

[tekton-robot]

Hi @vsinghai. Thanks for your PR.

I'm waiting for a tektoncd member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[dibyom]

/ok-to-test

[vsinghai]

TestPipelineRunTimeout is a known flake - #3460

/test pull-tekton-pipeline-alpha-integration-tests

[jerop]

thank you for fixing this test @vsinghai!

planning to create a separate commit fixing the custom task in pipeline results with finally?

[tekton-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: jerop

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[vsinghai]

/cc @dibyom

[abayer]

/lgtm