chore(deps): update dependency @ember/test-helpers to v5 (#276)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

pnpm-lock.yaml

@@ -29,7 +29,7 @@
     "@babel/core": "^7.23.6",
     "@ember/optional-features": "^2.0.0",
     "@ember/string": "^4.0.0",
-    "@ember/test-helpers": "^3.2.1",
+    "@ember/test-helpers": "^5.0.0",
     "@embroider/test-setup": "^4.0.0",
     "@glimmer/component": "^1.1.2",
     "@glimmer/tracking": "^1.1.2",