chore(package): update babel-eslint to version 9.0.0

Author: greenkeeper[bot]

package.json

@@ -28,7 +28,7 @@
     "@types/react": "^16.4.7",
     "babel-cli": "^6.26.0",
     "babel-core": "^6.26.3",
-    "babel-eslint": "^8.2.6",
+    "babel-eslint": "^9.0.0",
     "babel-plugin-transform-decorators-legacy": "^1.3.5",
     "babel-preset-es2015": "^6.24.1",
     "babel-preset-react": "^6.24.1",