Optional GH actions for knative.dev/reconciler-test

[pierDipi]

This PR knative-extensions/reconciler-test#368 is stuck
for downstream tests

/assign @kvmware

[krsna-m]

/lgtm

[pierDipi]

@kvmware can you approve, please?

[krsna-m]

/approve
sorry my bad

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: kvmware, pierDipi

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• OWNERS [kvmware]

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[knative-prow]

@pierDipi: Updated the config configmap in namespace default at cluster default using the following files:

• key config.yaml using file prow/config.yaml

In response to this:

This PR knative-extensions/reconciler-test#368 is stuck
for downstream tests

/assign @kvmware

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