Add ruby 4 support

[avangelillo]

What does this PR do?

Add support for the ruby 4 layer

Motivation

The Datadog layer for Ruby 4 was just released, we should support adding it across our tools.

Testing Guidelines

Added to unit tests

Types of changes

• Bug fix
• New feature
• Breaking change
• Misc (docs, refactoring, dependency upgrade, etc.)

Check all that apply

• This PR's description is comprehensive
• This PR contains breaking changes that are documented in the description
• This PR introduces new APIs or parameters that are documented and unlikely to change in the foreseeable future
• This PR impacts documentation, and it has been updated (or a ticket has been logged)
• This PR's changes are covered by the automated tests
• This PR collects user input/sensitive content into Datadog

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.72%. Comparing base (4447d7f) to head (58fa7b7).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #250   +/-   ##
=======================================
  Coverage   82.72%   82.72%           
=======================================
  Files          19       19           
  Lines         938      938           
  Branches      231      231           
=======================================
  Hits          776      776           
  Misses         91       91           
  Partials       71       71           

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[ava-silver]

every time i look at this code i feel like it probably could be like 10 constants plus a for loop -- but alas that is not a now problem