Improve golden file generation functionality

[piyush-garg]

Right now when we hit make generated it generates golden files for test scenarios and also updates the already existent files for test scenarios. But if there is some name change in the test name, it generates a new golden file, and the old one becomes redundant and remains there forever.

This function should be improved to remove all golden files and generate new ones so that we don't end with redundant golden files.

[piyush-garg]

/assign @vdemeester

As you are already working on it and see a PR also

[tekton-robot]

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/lifecycle stale

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[tekton-robot]

Stale issues rot after 30d of inactivity. Mark the issue as fresh with /remove-lifecycle rotten with a justification. Rotten issues close after an additional 30d of inactivity. If this issue is safe to close now please do so with /close with a justification. If this issue should be exempted, mark the issue as frozen with /lifecycle frozen with a justification.

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[vdemeester]

/lifecycle frozen

[binkkatal]

@piyush-garg , would like to contribute if not done already