This is the step with the ACME metric label change: the high-cardinality path
label on certmanager_acme_client_request_count and _duration_seconds is replaced
by a bounded action label. Nothing here uses those metrics — neither the
operating stack's rules nor any dashboard references them — so no dashboard or
alert has to follow.
Previous step verified: three deployments on v1.18.6, fifteen certificates
Ready.