Run bundler:audit on every rake task. Source: https://eliotsykes.com/bundler-audit

bundler_audit.rake

# File: ./lib/tasks/bundler_audit.rake
if Rails.env.development? || Rails.env.test?
  require 'bundler/audit/cli'

  namespace :bundler do
    desc 'Updates the ruby-advisory-db and runs audit'
    task :audit do
      %w(update check).each do |command|
        Bundler::Audit::CLI.start [command]
      end
    end
  end
end

Rakefile

# File: ./Rakefile
require File.expand_path('../config/application', __FILE__)

Rails.application.load_tasks
  
task default: 'bundler:audit'