add manual database dump from testing perfomed to preserve changes

[danielegobbetti]

@clezag
as per commit message, I did a manual dump from the changes the team performed on the testing environment since I wasn't sure if they would have been persisted otherwise (I see there is a dump script in the repo, but I am unsure if/when/how it is invoked).

This should bring no functional changes to the testing environment as the dump and the database content are equal, but will allow us to deploy to production.

[clezag]

FYI, the CI/CD just loads the dump after deploy, the two scripts in the db folder are for convenience, and not called anywhere.
The dump contains all the drop statements, so on every deploy, all changes made to testing environment would be overwritten.