…options

Pass render options and block to calls to `#render_in`

Follow-up to [rails#46202][]

Without overriding the new `#render_in` method, previous behavior will
be preserved: render the view partial determined by calling
`#to_partial_path`, then pass `object: self`.

With the following view partial:

```erb
<%# app/views/people/_person.html.erb %>
<% local_assigns.with_defaults(shout: false) => { shout: } %>

<%= shout ? person.name.upcase : person.name %>
```

Callers can render an instance of `Person` as a positional argument or a
`:renderable` option:

```ruby
person = Person.new(name: "Ralph")

render person                                       # => "Ralph"
render person, shout: true                          # => "RALPH"
render renderable: person                           # => "Ralph"
render renderable: person, locals: { shout: true }  # => "RALPH"
```

This preserves backward compatibility. At the same time, the
`#render_in` method provides applications with an more flexibility, and
an opportunity to manage how to transform models into Strings. For
example, users of ViewComponent can map a model directly to a
`ViewComponent::Base` instance.

[rails#46202]: rails#46202 (comment)