Automatic merge from submit-queue Fix intermittent failures in TestPidOf {procfs} Bailout if WalkFunc is called with an error. Fixes #30377 <!-- Reviewable:start --> --- This change is [<img src="https://reviewable.kubernetes.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.kubernetes.io/reviews/kubernetes/kubernetes/30402) <!-- Reviewable:end -->