Rails 7.0 support

[taylorrf]

Adds support to Rails 7.0 using Ruby 3.1, 3.2 and 3.3

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 99.01961% with 1 line in your changes missing coverage. Please review.

Project coverage is 97.63%. Comparing base (d9d5cbf) to head (d513432).

Files	Patch %	Lines
...odels/isolated/user_frequent_changes_bad_config.rb	85.71%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #137      +/-   ##
==========================================
+ Coverage   97.51%   97.63%   +0.12%     
==========================================
  Files          50       75      +25     
  Lines        1125     1226     +101     
==========================================
+ Hits         1097     1197     +100     
- Misses         28       29       +1     

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[geeksam]

Thanks for doing this! I've been meaning to add Rails 7 support for a while, but obviously hadn't. :) I've got a PR (#139) that refactors the CircleCI config file considerably; you can either merge that PR into this branch and then merge this one, OR merge this and I'll rebase the other branch.