fix: address CVE-2025-64718

[Antonio-Maranhao]

Overview

Updates to jest and related babel libraries to v30.
Add override in package.json to force 'mocha' dep to use js-yaml 4.1.1

Testing recommendations

No code changes and only dev dependencies have been updated, so it is sufficient that CI passes.

GitHub issue number

n/a

Related Pull Requests

n/a

Checklist

• Code is written and works correctly;
• Changes are covered by tests;
• Documentation reflects the changes;
• Update rebar.config.script with the correct tag once a new Fauxton release is made