build(deps): bump shelljs and cordova-browser

Bumps [shelljs](https://github.com/shelljs/shelljs) to 0.8.5 and updates ancestor dependency [cordova-browser](https://github.com/apache/cordova-browser). These dependencies need to be updated together.


Updates `shelljs` from 0.5.3 to 0.8.5
- [Release notes](https://github.com/shelljs/shelljs/releases)
- [Changelog](https://github.com/shelljs/shelljs/blob/master/CHANGELOG.md)
- [Commits](shelljs/shelljs@v0.5.3...v0.8.5)

Updates `cordova-browser` from 6.0.0 to 7.0.0
- [Changelog](https://github.com/apache/cordova-browser/blob/master/RELEASENOTES.md)
- [Commits](apache/cordova-browser@6.0.0...7.0.0)

---
updated-dependencies:
- dependency-name: shelljs
  dependency-type: indirect
- dependency-name: cordova-browser
  dependency-type: direct:development
...

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