satellitedb migration tests ran against multiple base versions, however after the merging all the steps the base versions didn't exists anymore - which meant none of the migration tests were actually running.
first, so that they all work the same way, because it's getting
complicated, and second, so that we can do the appropriate thing
instead of CREATE SCHEMA for cockroachdb.
Change-Id: I27fbaeeb6223a3e06d97bcf692a2d014b31465f7
