Merge pull request #507 from ember-cli/update-babel-deps

Update Babel related devDependencies.

Author: Robert Jackson

package.json

@@ -53,8 +53,8 @@
     "@babel/plugin-proposal-class-properties": "^7.8.3",
     "@babel/plugin-proposal-decorators": "^7.8.3",
     "@babel/plugin-transform-runtime": "^7.9.0",
-    "@babel/plugin-transform-typescript": "^7.8.3",
-    "@babel/runtime": "^7.8.4",
+    "@babel/plugin-transform-typescript": "^7.9.4",
+    "@babel/runtime": "^7.9.2",
     "@ember/optional-features": "^1.3.0",
     "babel-eslint": "^10.1.0",
     "babel-plugin-debug-macros": "^0.3.3",