Bump socket.io-parser, browser-sync and karma

Bumps [socket.io-parser](https://github.com/socketio/socket.io-parser) to 4.2.1 and updates ancestor dependencies [socket.io-parser](https://github.com/socketio/socket.io-parser), [browser-sync](https://github.com/BrowserSync/browser-sync) and [karma](https://github.com/karma-runner/karma). These dependencies need to be updated together.


Updates `socket.io-parser` from 2.3.1 to 4.2.1
- [Release notes](https://github.com/socketio/socket.io-parser/releases)
- [Changelog](https://github.com/socketio/socket.io-parser/blob/main/CHANGELOG.md)
- [Commits](socketio/socket.io-parser@2.3.1...4.2.1)

Updates `browser-sync` from 2.5.3 to 2.27.10
- [Release notes](https://github.com/BrowserSync/browser-sync/releases)
- [Changelog](https://github.com/BrowserSync/browser-sync/blob/master/CHANGELOG.md)
- [Commits](BrowserSync/browser-sync@v2.5.3...v2.27.10)

Updates `karma` from 1.7.1 to 6.4.1
- [Release notes](https://github.com/karma-runner/karma/releases)
- [Changelog](https://github.com/karma-runner/karma/blob/master/CHANGELOG.md)
- [Commits](karma-runner/karma@1.7.1...v6.4.1)

---
updated-dependencies:
- dependency-name: socket.io-parser
  dependency-type: indirect
- dependency-name: browser-sync
  dependency-type: direct:production
- dependency-name: karma
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>