Prep gem for Ruby 4.0

[aaccensi]

Context

In an ongoing effort to prepare the internal gems for the upcoming Ruby4/Rails8 update, we updated their semaphore checks to use versions 3.3 and 4.0. Then run their RSpec tests locally against this 2 versions to identify any early issues (at gem level) and fix them.

Implemented changes

• refinery: Update Ruby version checks to 3.3/4.0
• fever: Update Ruby version checks to 3.3/4.0
• merit: Update Ruby version checks to 3.3/4.0 and add csv dependency
• atlas: Update Ruby version checks to 3.3/4.0 and lockfile/dependencies for Ruby 4.0
• identity_rails: Add simplecov, update Ruby version checks to 3.3/4.0 and lockfile/dependencies for Ruby 4.0
• transformer: Add simplecov, unpin ruby-version then set Ruby version checks for 3.3/4.0
• rubel: Add rspec and simplecov, fix some specs then set Ruby version checks for 3.3/4.0
• osmosis: Standarize simplecov, add bigdecimal dependency, fix some specs then set Ruby version checks for 3.3/4.0
• turbine: Standarize simplecov, add rspec-collection_matchers, fix specs then set Ruby version checks for 3.3/4.0

Related

Goes with pull requests:

• refinery: Prep gem for Ruby 4.0 refinery#63
• fever: Prep gem for Ruby 4.0 fever#2
• merit: Prep gem for Ruby 4.0 merit#160
• atlas: Prep gem for Ruby 4.0  atlas#187
• identity_rails: Prep gem for Ruby 4.0 identity_rails#7
• transformer: Prep gem for Ruby 4.0 #19 [THIS ONE]
• rubel: Prep gem for Ruby 4.0 rubel#1
• osmosis: Prep gem for ruby 4.0 osmosis#1
• turbine: Prep gem for Ruby 4.0 turbine#5

Checklist

• I have tested these changes
• I have updated documentation as needed
• I have tagged the relevant people for review