Tekton-powered job status is sometimes not accurate

[vdemeester]

Expected Behavior

When a tekton-powered job is executed, the status is the correct one (aka when running, it is pending, …).

Actual Behavior

See tektoncd/pipeline#8047 (comment), there is cases where the checks/status is already marked as a success even though the job is still running (and thus should still be marked as pending).

This is slightly related to #1908