Build(deps-dev): Bump ember-auto-import from 2.7.4 to 2.8.1 (#1825)

Bumps [ember-auto-import](https://github.com/embroider-build/ember-auto-import/tree/HEAD/packages/ember-auto-import) from 2.7.4 to 2.8.1.
- [Release notes](https://github.com/embroider-build/ember-auto-import/releases)
- [Changelog](https://github.com/embroider-build/ember-auto-import/blob/main/packages/ember-auto-import/CHANGELOG.md)
- [Commits](https://github.com/embroider-build/ember-auto-import/commits/HEAD/packages/ember-auto-import)

---
updated-dependencies:
- dependency-name: ember-auto-import
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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