Bump @babel/helpers from 7.23.6 to 7.28.4 in /docs

Bumps [@babel/helpers](https://github.com/babel/babel/tree/HEAD/packages/babel-helpers) from 7.23.6 to 7.28.4.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/commits/v7.28.4/packages/babel-helpers)

---
updated-dependencies:
- dependency-name: "@babel/helpers"
  dependency-version: 7.28.4
  dependency-type: indirect
...

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