Fix preferences serialization compatibility with Rails version check

[swamp09]

This PR modifies the Persistable module in Solidus to check the Rails version using Rails.gem_version instead of inspecting the serialize method parameters. This change is necessary only when using Solidus Globalize, ensuring compatibility with Rails 7.2.

Background

Solidus itself does not have any issues with the current implementation:

if method(:serialize).parameters.include?([:key, :type]) # Rails 7.1+
  serialize :preferences, type: Hash, coder: YAML
else
  serialize :preferences, Hash, coder: YAML
end

However, when using Solidus Globalize, which relies on globalize, an issue arises in Rails 7.2 due to globalize overriding the serialize method:

ArgumentError: wrong number of arguments (given 2, expected 1)

This occurs because the serialize method signature is modified by globalize, causing a mismatch when Solidus inspects its parameters. For reference, see the globalize implementation here: https://github.com/globalize/globalize/blob/main/lib/patches/active_record/rails7_2/serialization.rb

Solution

To avoid conflicts, this PR replaces the method introspection with a Rails version check:

if Rails.gem_version >= Gem::Version.new('7.1')
  serialize :preferences, type: Hash, coder: YAML
else
  serialize :preferences, Hash, coder: YAML
end

This approach ensures compatibility while keeping Solidus independent from dependency-specific overrides.

This issue is currently blocking the CI of the following PR in the solidus_globalize repository: solidusio-contrib/solidus_globalize#153 Fixing this in Solidus will help unblock that PR.

Checklist

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[tvdeyen]

Thank you.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.58%. Comparing base (3675af2) to head (2bcf076).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6083      +/-   ##
==========================================
+ Coverage   89.33%   89.58%   +0.24%     
==========================================
  Files         730      801      +71     
  Lines       16462    18275    +1813     
==========================================
+ Hits        14706    16371    +1665     
- Misses       1756     1904     +148     

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[github-actions]

💚 All backports created successfully

Status	Branch	Result
✅	v4.4

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