This is a clone of issue OCPBUGS-8016. The following is the description of the original issue:
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This is a clone of issue OCPBUGS-1748. The following is the description of the original issue:
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Description of problem:

PipelineRun templates are currently fetched from `openshift-pipelines` namespace. It has to be fetched from `openshift` namespace.

Version-Release number of selected component (if applicable):
4.11 and 1.8.1 OSP

Align with operator changes https://issues.redhat.com/browse/SRVKP-2413 in 1.8.1, UI has to update the code to fetch pipelinerun templates from openshift namespace.