Updates coder/customers#365
This PR updates our migration framework to run all migrations in a single transaction. This is the same behavior we had in v1 and ensures that failed migrations don't bring the whole deployment down. If a migration fails now, it will automatically be rolled back to the previous version, allowing the deployment to continue functioning.
* chore: Force license uuids to not be null
* All unit tests generate uuids for licenses
* Update migration files to new numbers
* Put migration in transaction
