Fix typo in ensure-release-projects.sh
Fix typo in ensure-release-projects.sh

Turns out gs://k8s-release-dev didn't have the appropriate
world-readable permissions applied, so gcsweb.k8s.io couldn't display
its contents

thockin/k8s.io,kubernetes/k8s.io,thockin/k8s.io,thockin/k8s.io,kubernetes/k8s.io,kubernetes/k8s.io,thockin/k8s.io,kubernetes/k8s.io