review02 : switch reviewdb to mariadb_container type

This switches review02 to use a mariadb container for the change
review database.

Change-Id: Idc6183d63e22e7484a4127a3b71b29cb53c23c51

inventory/service/host_vars/review02.opendev.org.yaml

@@ -4,7 +4,7 @@ gerrit_vhost_name: review.opendev.org
 gerrit_serverid: 4a232e18-c5a9-48ee-94c0-e04e7cca6543
 gerrit_redirect_vhost: review.openstack.org
 gerrit_heap_limit: 48g
-gerrit_reviewdb_database_type: h2
+gerrit_reviewdb_database_type: mariadb_container
 letsencrypt_certs:
   review02-opendev-org-main:
     - review.opendev.org