V2.1.0

• Removes the need of ecto_cockroach. With PRs being merged in upstream, it's not really a requirement to use it now, as the regular postgrex adapter works great.
• Removes the unused config folder to remove a compiler warning amount Mix.Config vs Config
• Updates dependencies in the mix.lock file. This removes a bunch of compiler warnings using Elixir 1.14.1

Thanks @btkostner for the contribution.