Fix PSS restricted warnings #2270

Job	Run time
Publish Image (file-metrics-collector, cmd/metricscollector/v1beta1/file-metricscollector/Dockerf... / Build and Publish Images	10m 48s
Publish Image (katib-controller, cmd/katib-controller/v1beta1/Dockerfile) / Build and Publish Images	22m 55s
Publish Image (katib-db-manager, cmd/db-manager/v1beta1/Dockerfile) / Build and Publish Images	8m 52s
Publish Image (katib-ui, cmd/ui/v1beta1/Dockerfile) / Build and Publish Images	47m 1s
Publish Image (tfevent-metrics-collector, cmd/metricscollector/v1beta1/tfevent-metricscollector/D... / Build and Publish Images	10m 11s
	1h 39m 47s

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