Feature RethinkDB Support

[muratmirgun]

I can write this integration

[lucasmdrs]

Hi @muratmirgun 👋

We appreciate the suggestion and offering for contributing to the project!

However, we have been discussing internally that including more and more checkers in the repository is increasing the maintenance work for keeping things up-to-date and more importantly is starting to influence the module's minimum supported version, which can cascade to the users.

We are still deciding how we'll tackle this, but for now we are avoiding adding new checks. Once decided, we'll update our contribution guide and reach out for possible contributions such as this.