The `database:` argument from the `connected_to` method was deprecated
in Rails 6.1 [1] and removed in Rails 7.0 [2]. The ros-apartement gem
has already introduced fixes for this issue [3][4], but there has been
no release including these fixes.
So we're applying the fix in our code.
Note that, since Apartment already overwrites the `connected_to` method
by creating a `connected_to_with_tenant` method, we're calling the
`connected_to_without_tenant` method inside the patch, which is
equivalent to ActiveRecord's original `connected_to`.
[1] Pull request 37874 in https://github.com/rails/rails
[2] Pull request 40530 in https://github.com/rails/rails/pull
[3] Pull request 194 in https://github.com/rails-on-services/apartment
[4] Pull request 243 in https://github.com/rails-on-services/apartment
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