Added foregin_key to the allowed validation options for managing columns and tables in migration

[soartec-lab]

Motivation / Background

This Pull Request has been created because raise an error when adding columns in a new migration if foregin_key is included.

Detail

This Pull Request changes fix an error when adding columns in a new migration if foregin_key is included.
The error occurs in cases where foregin_key is specified such as add_reference in an old migration definition. For example, the bellow:

class ChangeTableUsers < ActiveRecord::Migration[6.0]
  def change
    add_reference :users, :posts, foregin_key: true
  end
end

#=> eval error: Unknown key: :foregin_key. Valid keys are: :limit, :precision, :scale, :default, :null, :collation, :comment, :primary_key, :if_exists, :if_not_exists, :auto_increment, :charset, :as, :size, :unsigned, :first, :after, :type, :stored

An error is generated if an option other than the allowed option is entered. The foregin_key is not included in the allowed options, but it is necessary, so it was added.

Also, add_reference is now compatible with lower versions.

Additional information

• Modified PR: Validate options when managing columns and tables in migration rails/rails#46178

Checklist

Before submitting the PR make sure the following are checked:

• This Pull Request is related to one change. Changes that are unrelated should be opened in separate PRs.
• Commit message has a detailed description of what changed and why. If this PR fixes a related issue include it in the commit message. Ex: [Fix #issue-number]
• Tests are added or updated if you fix a bug or add a feature.
• CHANGELOG files are updated for the changed libraries if there is a behavior change or additional feature. Minor bug fixes and documentation changes should not be included.