This container can be pulled via:
  docker pull obs.pg.labs.percona.com/isv/percona/ppg/staging/18/containers/ubi8/percona-distribution-postgresql-with-postgis:18
  docker pull obs.pg.labs.percona.com/isv/percona/ppg/staging/18/containers/ubi8/percona-distribution-postgresql-with-postgis:18.6
  docker pull obs.pg.labs.percona.com/isv/percona/ppg/staging/18/containers/ubi8/percona-distribution-postgresql-with-postgis:18.6.1-6

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.