Add ActiveSupport 7.1 as default setup

[tomascco]

I made this PR based on #314, so:

• Updated the "main" Gemfile to Rails 7.1
• Moved the old Gemfile to the gemfiles folder
• Updated all Gemfiles

I ran rake spec with all Gemfiles, but got a Deprecation Warning that a didn't succeed in solving:

DEPRECATION WARNING: Support for `config.active_support.cache_format_version = 6.1` has been deprecated and will be removed in Rails 7.2.

(called from <top (required)> at arbre/spec/rails/rails_spec_helper.rb:5)

One solution that I found is to define the config on spec/rails/rails_spec_helper.rb:

# from
Combustion.initialize! :action_controller,
                       :action_view

# to
Combustion.initialize! :action_controller, :action_view do # line 5
  config.active_support.cache_format_version = 7.1
end

[codecov]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (5f9cc4e) 92.52% compared to head (708df54) 92.52%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #537   +/-   ##
=======================================
  Coverage   92.52%   92.52%           
=======================================
  Files          17       17           
  Lines         468      468           
=======================================
  Hits          433      433           
  Misses         35       35           

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[javierjulio]

I'm ok with the suggestion for resolving the deprecation warning. If you know of other solutions please share. We'll remove the upper bound limit on dependencies as part of a separate change so this shouldn't be needed in the future.

[javierjulio]

You'll have to rebase and resolve conflicts. I merged #539 to make future maintenance easier.

Please update the Dependabot config with an item for the new rails_70 directory.

[javierjulio]

Thanks!