Description of problem:

Currently only admins or sa with users with admin roles only can access pipelines.
We should think about providing this feature available to wider set of people or we should just limit it admin. This bug is to track such use cases and enhance feature to support these.Permissions to run tekton pipelines for non cluster roles or maybe with time bound tokens

Version-Release number of selected component (if applicable):
4.12

How reproducible:
always

Steps to Reproduce:
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Actual results:

Expected results:

Additional info: