chore: bump browser-sync from 2.29.1 to 2.29.3 (docsifyjs#2075)

Bumps [browser-sync](https://github.com/BrowserSync/browser-sync) from 2.29.1 to 2.29.3.
- [Release notes](https://github.com/BrowserSync/browser-sync/releases)
- [Changelog](https://github.com/BrowserSync/browser-sync/blob/master/CHANGELOG.md)
- [Commits](BrowserSync/browser-sync@v2.29.1...v2.29.3)

---
updated-dependencies:
- dependency-name: browser-sync
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]