ActiveModel: Rails 6.1.0 - *_previously_changed? accepts :from and :to keyword arguments

`*_previously_changed?` accepts `:from` and `:to` keyword arguments like `*_changed?` since Rails 6.1.0

```ruby
task.update!(status: :archived)
task.status_previously_changed?(from: "active", to: "archived")
# => true
```


Victor Velazquez
February 10, 2021
