Bump webpack-dashboard from 3.3.1 to 3.3.3 (#5935)
Bump webpack-dashboard from 3.3.1 to 3.3.3 (#5935)

Bumps [webpack-dashboard](https://github.com/FormidableLabs/webpack-dashboard) from 3.3.1 to 3.3.3.
- [Release notes](https://github.com/FormidableLabs/webpack-dashboard/releases)
- [Changelog](https://github.com/FormidableLabs/webpack-dashboard/blob/master/CHANGELOG.md)
- [Commits](https://github.com/FormidableLabs/webpack-dashboard/compare/v3.3.1...v3.3.3)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>

Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
zooniverse/Panoptes-Front-End