Crontab doesn't work with Rails 7

Crontab is not working.
I have configured crontab with the settings below.
I ran whenever --update-crontab, but it is not working.

ruby 3.1.4
rails 7.0.8

#config/schedule.rb

set :output, "/log/cron_log.log"

every 2.minutes do
  runner 'Article.update_content'
end

#app/models/article.rb

class Article < ApplicationRecord
  class << self
    def update_content
      article = Article.first
      content = article.content.to_i + 1
      article.update content: content
    end
  end
end

Start with config/schedule.rb and app/models/article.rb, then reproduce the whenever --update-crontab command using the listed Ruby and Rails versions. Check the generated cron entry and its log output; done means the scheduled runner executes every two minutes and updates Article content.