adding a tweaks for string freezes

[johnmccrae]

Starting in Ruby 3.4, we get warnings about frozen strings being literals. In the past, we would need to add the magic comment: "# frozen_string_literal: true". What that warning tells us is that we have code that is treating immutable strings as mutable.
Also cookstyle has us remove ".freeze" to other files as well.

Ruby Docs - that doc links to how/why we need to do this work.

Description

Related Issue

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Chore (non-breaking change that does not add functionality or fix an issue)

Checklist:

• I have read the CONTRIBUTING document.
• I have run the pre-merge tests locally and they pass.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• If Gemfile.lock has changed, I have used --conservative to do it and included the full output in the Description above.
• All new and existing tests passed.
• All commits have been signed-off for the Developer Certificate of Origin.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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