fix(package): update ember-cli-babel to version 7.7.3

greenkeeper[bot] · greenkeeper[bot] · commit 5995efd02c5d · 2019-03-29T20:13:07.000Z
Closes #12
diff --git a/package.json b/package.json
@@ -20,7 +20,7 @@
     "test": "ember try:each"
   },
   "dependencies": {
-    "ember-cli-babel": "^6.6.0",
+    "ember-cli-babel": "^7.7.3",
     "ember-cli-htmlbars": "^2.0.1"
   },
   "devDependencies": {
