Copy over db instead of cleanup during tests
As mentioned in the notes of https://github.com/epicweb-dev/epic-stack/releases/tag/2024-10-01 we can drastically speed up tests by copying over the test database before each test instead of trying to clean it up in between tests. So that's what we've done:
It goes from ~6ms overhead on each test to ~0.5ms on my macbook.