Bump ember-load-initializers from 1.0.0 to 2.1.1

Bumps [ember-load-initializers](https://github.com/ember-cli/ember-load-initializers) from 1.0.0 to 2.1.1.
- [Release notes](https://github.com/ember-cli/ember-load-initializers/releases)
- [Changelog](https://github.com/ember-cli/ember-load-initializers/blob/master/CHANGELOG.md)
- [Commits](ember-cli/ember-load-initializers@v1.0.0...v2.1.1)

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

Author: dependabot-preview[bot]