refactor: migrate to the new Japa

[Julien-R44]

• Migration to the new Japa version
• Close all connections that were left open in order to remove forceExit from Japa config
• Fix bug where dropAllTables called on an empty MySQL database would throw an exception

However there is still a bug since the migration: only on MSSQL, the updated_at is not exactly equal to the created_at.
See the logs of the last CI:

Have you already seen this issue? Do I just add an assert.closeTo or do you think there is a real problem somewhere?

[thetutlage]

Thanks 👍