Update dependency ember-auto-import to v2 (#93)

* Update dependency ember-auto-import to v2

* add webpack dependency required by ember-auto-import@v2

Co-authored-by: Renovate Bot <bot@renovateapp.com>
Co-authored-by: Jeldrik Hanschke <admin@jhanschke.de>

package.json

@@ -34,7 +34,7 @@
     "@glimmer/tracking": "^1.0.1",
     "babel-eslint": "^10.1.0",
     "broccoli-asset-rev": "^3.0.0",
-    "ember-auto-import": "^1.6.0",
+    "ember-auto-import": "^2.0.0",
     "ember-cli": "~3.28.0",
     "ember-cli-dependency-checker": "^3.2.0",
     "ember-cli-inject-live-reload": "^2.0.2",
@@ -61,7 +61,8 @@
     "qunit": "^2.17.2",
     "qunit-dom": "^2.0.0",
     "release-it": "^14.0.0",
-    "release-it-lerna-changelog": "^4.0.0"
+    "release-it-lerna-changelog": "^4.0.0",
+    "webpack": "5"
   },
   "engines": {
     "node": "12.* || 14.* || >= 16"