Bump ember-web-app from 2.2.0 to 3.0.1

Bumps [ember-web-app](https://github.com/zonkyio/ember-web-app) from 2.2.0 to 3.0.1.
- [Release notes](https://github.com/zonkyio/ember-web-app/releases)
- [Changelog](https://github.com/zonkyio/ember-web-app/blob/master/CHANGELOG.md)
- [Commits](zonkyio/ember-web-app@v2.2.0...v3.0.1)

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

Author: dependabot-preview[bot]