Update dependency ember-cli-babel to v8

Author: renovate[bot]

ember/package.json

@@ -44,7 +44,7 @@
     "ember-auto-import": "1.11.2",
     "ember-bootstrap": "4.3.0",
     "ember-cli": "3.26.0",
-    "ember-cli-babel": "7.26.6",
+    "ember-cli-babel": "8.2.0",
     "ember-cli-bundle-analyzer": "0.2.2",
     "ember-cli-code-coverage": "1.0.2",
     "ember-cli-dependency-checker": "3.2.0",