chore(deps): update dependency ember-cli-babel to v8

Author: renovate[bot]

docsSrc/package.json

@@ -41,7 +41,7 @@
     "ember-build-prerender": "^0.3.2",
     "ember-cli": "~4.8.0",
     "ember-cli-app-version": "^5.0.0",
-    "ember-cli-babel": "^7.26.11",
+    "ember-cli-babel": "^8.0.0",
     "ember-cli-dependency-checker": "^3.3.1",
     "ember-cli-htmlbars": "^6.0.1",
     "ember-cli-inject-live-reload": "^2.1.0",