Rubocop significantly slower on Rails 7.1

[lukasfroehlich1]

After upgrading to Rails 7.1 we observed a significant slowdown in RuboCop.

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Expected behavior

When running RuboCop on Rails 7.0.8.1 it takes 52s.

Actual behavior

When running RuboCop on Rails 7.1.0 it takes 3m 52s.

Steps to reproduce the problem

Update Gemfile to use Rails 7.1:

gem "rails", "~> 7.1.0"

Run RuboCop after deleting cache:

rm -rf ~/.cache/rubocop_cache
bundle exec rubocop -P --enable-pending-cops

Notice that it's much slower.

RuboCop version

 bundle exec rubocop -V                                                                                                           
1.56.3 (using Parser 3.2.2.3, rubocop-ast 1.30.0, running on ruby 3.1.4) [arm64-darwin22]
  - rubocop-capybara 2.18.0
  - rubocop-factory_bot 2.23.1
  - rubocop-inflector 0.2.1
  - rubocop-rails 2.23.1
  - rubocop-rspec 2.24.0