Update dependency ember-composable-helpers to v3 (#1446)

Co-authored-by: Renovate Bot <renovatebot@gmail.com>

package.json

@@ -71,7 +71,7 @@
     "ember-cli-string-helpers": "4.0.6",
     "ember-cli-test-loader": "2.2.0",
     "ember-cli-uglify": "3.0.0",
-    "ember-composable-helpers": "2.4.0",
+    "ember-composable-helpers": "3.0.3",
     "ember-concurrency": "1.1.3",
     "ember-data": "3.14.1",
     "ember-drag-drop": "0.4.8",

yarn.lock

@@ -5409,10 +5409,10 @@ ember-compatibility-helpers@^1.1.1, ember-compatibility-helpers@^1.1.2, ember-co
     ember-cli-version-checker "^2.1.1"
     semver "^5.4.1"
 
-ember-composable-helpers@2.4.0:
-  version "2.4.0"
-  resolved "https://registry.yarnpkg.com/ember-composable-helpers/-/ember-composable-helpers-2.4.0.tgz#024bd6a8c338cc9cdf10f1141b119b8f72de205f"
-  integrity sha512-91ZqFnNG1EDL3WzxXWTgAy6EonPS7htWHletI5SOw5ezEzKbt6EGNBwT6QPhwariugtR8LEfYNQ9lXEiCZrX1w==
+ember-composable-helpers@3.0.3:
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/ember-composable-helpers/-/ember-composable-helpers-3.0.3.tgz#bcb0d33690868067aeea38b879dab41e279f5d33"
+  integrity sha512-uNZm9EJQFGLBNUYm2es+hdS0vGLgSHiqXdSvFQ11y/B3nBkV4noocYqseF+wXoGuhB5di74zpB9Nty/E0mzuWw==
   dependencies:
     "@babel/core" "^7.0.0"
     broccoli-funnel "2.0.1"