DevOps: make dev and demo environments deployments to reset & reseed DB

[evereq]

1. For the Demo environment, will are going to have a cron task that resets DB to the initial state every night (e.g. at 00:00). The "reset" DB means the following steps:

• drop DB schema (DROP DATABASE gauzy)
• create DB schema again (CREATE DATABASE gauzy)
• run yarn seed:all so it reseeds all DB with fake demo data

2. Dev env should recreate (reset) DB on each deployment. It means the following steps:

• drop DB schema (DROP DATABASE gauzy)
• create DB schema again (CREATE DATABASE gauzy)
• no need to run yarn seed or yarn seed:all because the default seed runs as part of the first API start.