Description of problem:

when using max-keep-run and pipelines-as-code concurrency, the watcher would try to deleted the Pending PipelineRun when it should skip it.

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

Steps to Reproduce

Create a lot of PipelineRun via PAC with a max-keep-run annotation on the PipelineRun and see that the watcher is getting "stuck" and not able to process the Pending PipelineRun.

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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