Bump ember-auto-import from 1.2.15 to 1.4.1

Bumps [ember-auto-import](https://github.com/ef4/ember-auto-import) from 1.2.15 to 1.4.1.
- [Release notes](https://github.com/ef4/ember-auto-import/releases)
- [Changelog](https://github.com/ef4/ember-auto-import/blob/master/CHANGELOG.md)
- [Commits](embroider-build/ember-auto-import@v1.2.15...v1.4.1)

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

Author: dependabot-preview[bot]