Update dependency ember-basic-dropdown to v8.9.0

Author: renovate[bot]

package.json

@@ -55,7 +55,7 @@
     "broccoli-asset-rev": "3.0.0",
     "concurrently": "9.2.1",
     "ember-auto-import": "2.12.0",
-    "ember-basic-dropdown": "8.8.0",
+    "ember-basic-dropdown": "8.9.0",
     "ember-bootstrap": "6.7.0",
     "ember-cli": "6.7.2",
     "ember-cli-blueprint-test-helpers": "0.19.2",