Prow CI should only run against PRs that touch Pelorus code

[mateusoliveira43]

OpenShift version

Not related to OpenShift

Problem description

Today, Prow CI jobs runs against all PRs. It should only run against PRs related to Pelorus code, i.e.:

• exporters folder
• charts folder
• pelorus-operator folder

Example configuration on how to achieve this:

• https://github.com/openshift/release/blob/master/ci-operator/jobs/openshift/oadp-operator/openshift-oadp-operator-master-presubmits.yaml#L898
• https://github.com/openshift/release/blob/master/ci-operator/jobs/openshift/oadp-operator/openshift-oadp-operator-master-presubmits.yaml#L915

Steps to reproduce

Not aplicable.

Current behavior

Prow CI jobs run against all PRs.

Expected behavior

Prow CI jobs run only on necessary PRs.

Code of Conduct

• [X] I agree to follow Pelorus's Code of Conduct