Merge pull request rails#44862 from jackscotti/patch-1

Update source of `secret_key_base` in cookie rotator example [ci-skip]

guides/source/upgrading_ruby_on_rails.md

@@ -381,7 +381,7 @@ The following is an example for rotator for the encrypted cookies.
 Rails.application.config.after_initialize do
   Rails.application.config.action_dispatch.cookies_rotations.tap do |cookies|
     salt = Rails.application.config.action_dispatch.authenticated_encrypted_cookie_salt
-    secret_key_base = Rails.application.secrets.secret_key_base
+    secret_key_base = Rails.application.secret_key_base
 
     key_generator = ActiveSupport::KeyGenerator.new(
       secret_key_base, iterations: 1000, hash_digest_class: OpenSSL::Digest::SHA1