TestLogicalBackupE2E will test the logical backup function that comes with the db.flanksource.com/PostgresqlDB by: - Create a PG Cluster with db.flanksource.com/PostgresqlDB - Insert test fixtures to the database - Trigger the backup CronJob so we can have a fresh logical backup of the cluster - Spin up a new PG Cluster with db.flanksource.com/PostgresqlDB - Run the restore command to restore the data of the first PG Cluster to the second cluster - Check the test fixtures is in the second cluster.