chore(deps): update ember testing

Author: renovate[bot]

packages/test-app/package.json

@@ -34,7 +34,7 @@
     "@babel/plugin-proposal-decorators": "7.25.9",
     "@ember/optional-features": "2.1.0",
     "@ember/string": "4.0.1",
-    "@ember/test-helpers": "4.0.5",
+    "@ember/test-helpers": "5.2.2",
     "@embroider/compat": "3.6.5",
     "@embroider/core": "3.4.20",
     "@embroider/webpack": "4.0.9",
@@ -55,7 +55,7 @@
     "ember-load-initializers": "2.1.2",
     "ember-modifier": "4.2.0",
     "ember-page-title": "8.2.4",
-    "ember-qunit": "8.1.1",
+    "ember-qunit": "9.0.3",
     "ember-resolver": "13.0.2",
     "ember-source": "5.12.0",
     "ember-template-lint": "7.0.8",