Apply Scalafix migrations

[lukaszwawrzyk]

Apply scalafix migrations on specific library updates.

Some libraries change their public api and require code changes on update. Some of these libraries provide special scalafix rules that can automatically rewrite the code to work with newer version. Scala Steward has a list of libraries, versions and scalafix rules that should be applied. We could integrate it with bazel. It is not a trivial task. sbt has a plugin for scalafix, while bazel does not, so we would need to build something.