Description of problem:

StepActions are not working on OSP 1.15, it outputs extra params for any tasks:

% tkn pr logs
task noop-task has failed: extra params passed by Step to StepAction: [output-path url revision]
pod for taskrun build-go-application-with-caching-noop-task not available yet
Tasks Completed: 1 (Failed: 1, Cancelled 0), Skipped: 0

it works with 1.14.x it works with upstream tekton (same version as shipped of operator) only operator is broken

kPrerequisites (if any, like setup, operators/versions):

Steps to Reproduce

 # <steps>

Actual results:

Expected results:

Reproducibility (Always/Intermittent/Only Once):

Acceptance criteria: 

Definition of Done:

Build Details:

Additional info (Such as Logs, Screenshots, etc):

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