ActiveRecord::Associations.handle_dependency downcases attribute name in error messages

Steps to reproduce

# frozen_string_literal: true

require 'bundler/inline'

gemfile(true) do
  source 'https://rubygems.org'

  gem 'rails'
  gem 'sqlite3'
  gem('rails-i18n', '~> 7.0')
end

require 'active_record'
require 'minitest/autorun'
require 'logger'

# This connection will do for database-independent bug reports.
ActiveRecord::Base.establish_connection(adapter: 'sqlite3', database: ':memory:')
ActiveRecord::Base.logger = Logger.new(STDOUT)

ActiveRecord::Schema.define do
  create_table :posts, force: true do |t|
  end

  create_table :comments, force: true do |t|
    t.integer :post_id
  end
end

class Post < ActiveRecord::Base
  has_many :comments, dependent: :restrict_with_error
end

class Comment < ActiveRecord::Base
  belongs_to :post
end

class BugTest < ActiveSupport::TestCase
  setup do
    I18n.backend.store_translations(
      :en,
      {
        activerecord: {
          attributes: {
            post: {
              comments: 'Some Comments'
            }
          }
        }
      }
    )
  end
  def test_association_stuff
    post = Post.create!
    post.comments << Comment.create!

    # Attempt to destroy post, which should fail due to restrict_with_error
    assert_not post.destroy
    # Verify that the appropriate error message is added to the post’s errors.
    # The error message should include the human-readable name 'Some Comments' as defined
    # in the custom translation.
    assert_equal ['Cannot delete record because dependent Some Comments exist'], post.errors[:base]
  end
end

Expected behavior

Attribute name should remain the same as in translation

Actual behavior

Attribute name has been downcased from Some Comments to some comments

System configuration

Rails version: 6.1.7.9

Ruby version: 3.2.5