This issue also relates to
DM-8414 which implements the JSON field type in the database, it requires django-mysql and mysqlclient. That was merged recently to master.
In development settings we have now
we also need django-mysql in production because of the JSON field.
More info here:
A migration will be necessary to acommodate the the scalar measurements stored in measurements.value to the new JSON field.
So it is worth to test that bit in production in advance, before another (major) update which is the goal of this epic.