Merge pull request #326 from ember-bootstrap/renovate/ember-cli-4.x

Update dependency ember-cli to v4

Author: jelhan

package.json

@@ -46,7 +46,7 @@
     "broccoli-asset-rev": "^3.0.0",
     "ember-auto-import": "^2.4.1",
     "ember-bootstrap": "^5.1.0",
-    "ember-cli": "~3.28.5",
+    "ember-cli": "4.5.0",
     "ember-cli-dependency-checker": "^3.2.0",
     "ember-cli-inject-live-reload": "^2.1.0",
     "ember-cli-sri": "^2.1.1",