feat: allow ^ versions for data serialization packages

[JoshuaKGoldberg]

PR Checklist

• Addresses an existing open issue: fixes 📦 Package: Switch dependency versions to ^ ranges #5114 (part of it); fixes 🐛 Bug: Bump serialize-javascript from 6.0.0 to 6.0.2 #5109
• That issue was marked as status: accepting prs
• Steps in CONTRIBUTING.md were taken

Overview

Adds a ^ range to the following packages related to data serialization:

• js-yaml: latest version; hasn't been updated in 3 years
• serialize-javascript: new minor versions available, up to 6.0.2
• strip-json-comments: no new minor versions available - just new majors

[coveralls]

coverage: 94.38%. remained the same
when pulling 6fe1387 on JoshuaKGoldberg:minor-versions-serialization-packages
into be82606 on mochajs:main.

[JoshuaKGoldberg]

Released in mocha@v10.6.0. 🚀