build(deps-dev): bump ember-cli-favicon from 2.0.0 to 2.1.0
build(deps-dev): bump ember-cli-favicon from 2.0.0 to 2.1.0

Bumps [ember-cli-favicon](https://github.com/davewasmer/ember-cli-favicon) from 2.0.0 to 2.1.0.
- [Release notes](https://github.com/davewasmer/ember-cli-favicon/releases)
- [Changelog](https://github.com/davewasmer/ember-cli-favicon/blob/master/CHANGELOG.md)
- [Commits](https://github.com/davewasmer/ember-cli-favicon/compare/v2.0.0...v2.1.0)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
samselikoff/ember-cli-mirage,unchartedcode/ember-cli-mirage,unchartedcode/ember-cli-mirage,samselikoff/ember-cli-mirage,unchartedcode/ember-cli-mirage,samselikoff/ember-cli-mirage,unchartedcode/ember-cli-mirage,makepanic/ember-cli-mirage,samselikoff/ember-cli-mirage,makepanic/ember-cli-mirage