chore(deps): stable ember infrastructure

Author: renovate-bot

package.json

@@ -42,7 +42,7 @@
     "@types/rsvp": "4.0.2",
     "broccoli-asset-rev": "3.0.0",
     "ember-ajax": "5.0.0",
-    "ember-cli": "3.7.1",
+    "ember-cli": "3.8.1",
     "ember-cli-app-version": "3.2.0",
     "ember-cli-dependency-checker": "3.1.0",
     "ember-cli-eslint": "5.1.0",
@@ -119,7 +119,7 @@
   "dependencies": {
     "@code-to-json/core": "0.6.50",
     "@code-to-json/formatter": "0.5.49",
-    "ember-cli-babel": "7.5.0",
+    "ember-cli-babel": "7.6.0",
     "ember-cli-typescript": "2.0.0-rc.2",
     "ember-decorators": "5.1.4"
   },