fix(tools): regenerate tool metadata after the deployment description change

CI's tool-metadata:check failed: the three deployment tool descriptions moved
from "Requires admin permission" to "Requires write permission" but the
generated metadata they feed was not regenerated.

Scoped regeneration — exactly deployments_deploy, deployments_promote and
deployments_undeploy differ; no tools added, removed, or otherwise changed,
so staging's committed metadata was not itself stale.

Author: mzxchandra