Bump ua-parser-js and browser-sync in /www

Bumps [ua-parser-js](https://github.com/faisalman/ua-parser-js) to 1.0.34 and updates ancestor dependency [browser-sync](https://github.com/BrowserSync/browser-sync). These dependencies need to be updated together.


Updates `ua-parser-js` from 1.0.2 to 1.0.34
- [Release notes](https://github.com/faisalman/ua-parser-js/releases)
- [Changelog](https://github.com/faisalman/ua-parser-js/blob/1.0.34/changelog.md)
- [Commits](faisalman/ua-parser-js@1.0.2...1.0.34)

Updates `browser-sync` from 2.27.11 to 2.29.0
- [Release notes](https://github.com/BrowserSync/browser-sync/releases)
- [Changelog](https://github.com/BrowserSync/browser-sync/blob/master/CHANGELOG.md)
- [Commits](BrowserSync/browser-sync@v2.27.11...v2.29.0)

---
updated-dependencies:
- dependency-name: ua-parser-js
  dependency-type: indirect
- dependency-name: browser-sync
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>