Update for Ruby 4

[joelhawksley]

What are you trying to accomplish?

This PR updates the library to support Ruby 4 in the test suite, which we run in the ViewComponent test suite: https://github.com/ViewComponent/view_component/actions/runs/20867978163/job/59963524381.

A couple of browser-based builds needed longer timeouts to pass here.

At first, I tried updating to the latest Ruby and Rails wholesale across the repo, but ran into freerange/mocha#622 and a lack of Ruby 4 support in the VSCode Ruby images, so I held off on doing a full upgrade.

Screenshots

N/A

Integration

No

List the issues that this change affects.

N/A

Risk Assessment

• Low risk the change is small, highly observable, and easily rolled back.
• Medium risk changes that are isolated, reduced in scope or could impact few users. The change will not impact library availability.
• High risk changes are those that could impact customers and SLOs, low or no test coverage, low observability, or slow to rollback.

This change shouldn't make any difference in production.

What approach did you choose and why?

TBD

Anything you want to highlight for special attention from reviewers?

No

Merge checklist

• Added/updated tests
• Added/updated documentation
• Added/updated previews (Lookbook)
• Tested in Chrome
• Tested in Firefox
• Tested in Safari
• Tested in Edge

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[changeset-bot]

🦋 Changeset detected

Latest commit: edf4b0f

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@primer/view-components	Patch

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Click here if you're a maintainer who wants to add another changeset to this PR

[Copilot]

Pull request overview

This PR aims to add Ruby 4 support to the test suite by updating memory allocation assertions and increasing browser test timeouts. However, there are significant concerns about references to Ruby 4.0, which has not been officially released as of January 2025.

Changes:

• Added "4.0" entries to memory allocation assertions in performance benchmarks
• Increased FERRUM_PROCESS_TIMEOUT to 30 seconds for browser-based test workflows
• Updated package-lock.json with peer dependency markers (automated npm update)

Reviewed changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
test/performance/bench_utilities.rb	Added Ruby 4.0 allocation assertions for utility methods
test/performance/bench_octicons.rb	Added Ruby 4.0 allocation assertions for Octicon component
test/performance/bench_classify.rb	Added Ruby 4.0 allocation assertions for classify functionality
.github/workflows/test-selectors.yml	Added 30-second timeout for Ferrum browser processes
.github/workflows/test-accessibility.yml	Added 30-second timeout for Ferrum browser processes
package-lock.json	Automated npm update adding peer dependency markers
.changeset/healthy-days-hide.md	Changeset documenting Ruby 4 support

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