Fix CI for after ubuntu-latest becomes ubuntu-24

[brunoocasali]

We should be able to run the CI after this PR.

Deprecate ruby 3.0 and 3.1 officially from the CI and add support to ruby 3.4

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.96%. Comparing base (e331590) to head (27762f2).
Report is 10 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #378      +/-   ##
==========================================
+ Coverage   88.91%   88.96%   +0.04%     
==========================================
  Files          13       13              
  Lines         758      761       +3     
==========================================
+ Hits          674      677       +3     
  Misses         84       84              

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[curquiza]

bors merge

[meili-bors]

Build succeeded:

• integration-tests (Rails 6.1 with Ruby 3.2)
• integration-tests (Rails 6.1 with Ruby 3.3)
• integration-tests (Rails 6.1 with Ruby 3.4)
• integration-tests (Rails 7 with Ruby 3.2)
• integration-tests (Rails 7 with Ruby 3.3)
• integration-tests (Rails 7 with Ruby 3.4)
• linter-check
• smoke-test