v1.4.0

Changes:

• Upgrade to Zonky Embedded Postgres 1.2.2
• Added support for dockerized databases
• Added support for replaceable database providers
  • Supported providers: Testcontainers, Zonky, OpenTable, Yandex
• Added support for multiple embedded databases within a single test class
• Improved database prefetching to speed up the database initialization
• Fixed processing of Flyway repeatable migrations
• Some other fixes and improvements