We would like to upgrade Nuxeo (from 8.3 to 9.1 in our case), and also would like to automate the process; given that, and based on https://doc.nuxeo.com/nxdoc/upgrading-the-nuxeo-platform/ is it possible to run the upgrade in silent mode ? i.e. in particular the issue is the database upgrade portion, which I do not know how to trigger silently, as the only way I know of is to start the server - which is a blocking operation - which in turn means I have no idea how to determine programmatically when server is ready and thus can be stopped.