build(deps-dev): bump @ember/test-helpers from 2.2.9 to 2.4.0

Bumps [@ember/test-helpers](https://github.com/emberjs/ember-test-helpers) from 2.2.9 to 2.4.0.
- [Release notes](https://github.com/emberjs/ember-test-helpers/releases)
- [Changelog](https://github.com/emberjs/ember-test-helpers/blob/master/CHANGELOG.md)
- [Commits](emberjs/ember-test-helpers@v2.2.9...v2.4.0)

---
updated-dependencies:
- dependency-name: "@ember/test-helpers"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -49,7 +49,7 @@
   },
   "devDependencies": {
     "@ember/optional-features": "^2.0.0",
-    "@ember/test-helpers": "^2.2.9",
+    "@ember/test-helpers": "^2.4.0",
     "@glimmer/component": "^1.0.3",
     "@glimmer/tracking": "^1.0.3",
     "@types/ember-qunit": "^3.4.13",

yarn.lock

@@ -998,19 +998,19 @@
     mkdirp "^1.0.4"
     silent-error "^1.1.1"
 
-"@ember/test-helpers@^2.2.9":
-  version "2.2.9"
-  resolved "https://registry.yarnpkg.com/@ember/test-helpers/-/test-helpers-2.2.9.tgz#68cceb50ad5b8adedad5d8bf73b39ff71a07f4a6"
-  integrity sha512-QLwV2ASk7XB9+SLCNKFu+y9iNbTsH2Ah3eaJiHZ01uDgVsYZZfJCINhUB9/sY19VagBQnP5Te3QowI6qw3XeLA==
+"@ember/test-helpers@^2.4.0":
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/@ember/test-helpers/-/test-helpers-2.4.0.tgz#4680783cfad9c474de8a47dd30cc63f4bf8d70ef"
+  integrity sha512-tNYc7rsgr6vWfwSD7dkGZzCovrbdPdPwdqs1Q3m38rCGry00PUNadFGM4LL8T/4YmJMghAri3FpVv685ZPVBUA==
   dependencies:
-    "@ember/test-waiters" "^2.4.4"
+    "@ember/test-waiters" "^2.4.5"
     broccoli-debug "^0.6.5"
-    broccoli-funnel "^3.0.6"
+    broccoli-funnel "^3.0.8"
     ember-cli-babel "^7.26.6"
     ember-cli-htmlbars "^5.7.1"
     ember-destroyable-polyfill "^2.0.3"
 
-"@ember/test-waiters@^2.4.4":
+"@ember/test-waiters@^2.4.5":
   version "2.4.5"
   resolved "https://registry.yarnpkg.com/@ember/test-waiters/-/test-waiters-2.4.5.tgz#6e8e34d1bc46a9b0cc22cb11cc5936046e926031"
   integrity sha512-833JvHtHdEfBfKXgvmw+6oziFOpVfD4NQrc04Ztj59A11K9FPNfZ3P8YydL7LFTtdd7UfJ/cYCLAm+OwUxbotQ==
@@ -3290,23 +3290,7 @@ broccoli-funnel@^2.0.0, broccoli-funnel@^2.0.1, broccoli-funnel@^2.0.2:
     symlink-or-copy "^1.0.0"
     walk-sync "^0.3.1"
 
-broccoli-funnel@^3.0.3:
-  version "3.0.5"
-  resolved "https://registry.yarnpkg.com/broccoli-funnel/-/broccoli-funnel-3.0.5.tgz#60da33d060fae2936b3d78217bd4008a6eea5e41"
-  integrity sha512-fcjvQIWq4lpKyzQ7FWRo/V8/nOALjIrAoRMFCLgFeO2xhOC1+i7QWbMndLTwpnLCoXpTa+luBu3WSFoxQ3VPlw==
-  dependencies:
-    array-equal "^1.0.0"
-    blank-object "^1.0.1"
-    broccoli-plugin "^4.0.7"
-    debug "^4.1.1"
-    fast-ordered-set "^1.0.0"
-    fs-tree-diff "^2.0.1"
-    heimdalljs "^0.2.0"
-    minimatch "^3.0.0"
-    path-posix "^1.0.0"
-    walk-sync "^2.0.2"
-
-broccoli-funnel@^3.0.6:
+broccoli-funnel@^3.0.3, broccoli-funnel@^3.0.8:
   version "3.0.8"
   resolved "https://registry.yarnpkg.com/broccoli-funnel/-/broccoli-funnel-3.0.8.tgz#f5b62e2763c3918026a15a3c833edc889971279b"
   integrity sha512-ng4eIhPYiXqMw6SyGoxPHR3YAwEd2lr9FgBI1CyTbspl4txZovOsmzFkMkGAlu88xyvYXJqHiM2crfLa65T1BQ==