Description of problem:

Taskrun pruner configured to run every minute is not able to prune task runs in 2 minutes, usually finishes in 3 minutes.

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

Pipelines 1.17.0

Steps to Reproduce

1. install Pipelines 1.17.0
2. run release tests https://github.com/openshift-pipelines/release-tests
3. gauge run --log-level=debug --verbose --tags e2e specs/operator/auto-prune.spec
    

Actual results:

Many tests fail because expected number of task runs is not equal to actual number of task runs

Expected results:

All tests pass

Reproducibility (Always/Intermittent/Only Once):

Always

Acceptance criteria: 

 All tests pass without modification

Definition of Done:

Build Details:

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

These tests were introduced in 1.6 and were running reliably since then
 

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