cleaning up provenance from pipelineRun

[pritidesai]

Changes

The tests are intended to not validate provenance fields and hence deleting those fields from the status and adding ignoreProvenance while comparing actual and expected pipelineRun.

Deleting provenace from:

• https://github.com/tektoncd/pipeline/blob/main/pkg/reconciler/pipelinerun/pipelinerun_test.go#L1200
• https://github.com/tektoncd/pipeline/blob/main/pkg/reconciler/pipelinerun/pipelinerun_test.go#L4821
• And all the instances from matrix tests

/kind cleanup

@dibyom as mentioned in the earlier PR - #7064 (comment)

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[jerop]

/retest

[Yongxuanzhang]

Thanks!
/lgtm

[jerop]

retriggering CLA