chore(deps): update ember testing

Author: renovate[bot]

packages/test-app/package.json

@@ -28,7 +28,7 @@
     "@babel/eslint-parser": "7.25.9",
     "@ember/optional-features": "2.2.0",
     "@ember/string": "4.0.0",
-    "@ember/test-helpers": "3.3.1",
+    "@ember/test-helpers": "4.0.4",
     "@embroider/test-setup": "4.0.0",
     "@eslint/eslintrc": "3.2.0",
     "@eslint/js": "9.17.0",
@@ -58,7 +58,7 @@
     "ember-load-initializers": "3.0.1",
     "ember-maybe-import-regenerator": "1.0.0",
     "ember-page-title": "8.2.3",
-    "ember-qunit": "8.1.1",
+    "ember-qunit": "9.0.1",
     "ember-resolver": "13.1.0",
     "ember-sinon": "5.0.0",
     "ember-source": "5.12.0",