chore(deps): Bump serve-static and parse-dashboard

Bumps [serve-static](https://github.com/expressjs/serve-static) to 1.16.2 and updates ancestor dependency [parse-dashboard](https://github.com/ParsePlatform/parse-dashboard). These dependencies need to be updated together.


Updates `serve-static` from 1.15.0 to 1.16.2
- [Release notes](https://github.com/expressjs/serve-static/releases)
- [Changelog](https://github.com/expressjs/serve-static/blob/v1.16.2/HISTORY.md)
- [Commits](expressjs/serve-static@v1.15.0...v1.16.2)

Updates `parse-dashboard` from 5.4.0 to 6.0.0
- [Release notes](https://github.com/ParsePlatform/parse-dashboard/releases)
- [Changelog](https://github.com/parse-community/parse-dashboard/blob/alpha/CHANGELOG.md)
- [Commits](parse-community/parse-dashboard@5.4.0...6.0.0)

---
updated-dependencies:
- dependency-name: serve-static
  dependency-type: indirect
- dependency-name: parse-dashboard
  dependency-type: direct:production
...

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