chore(package): update eslint-plugin-babel to version 4.0.0

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -56,7 +56,7 @@
     "eslint-config-standard": "^6.0.1",
     "eslint-formatter-pretty": "^1.0.0",
     "eslint-plugin-ava": "^4.0.0",
-    "eslint-plugin-babel": "^3.3.0",
+    "eslint-plugin-babel": "^4.0.0",
     "eslint-plugin-markdown": "^1.0.0-beta.2",
     "eslint-plugin-promise": "^3.0.0",
     "eslint-plugin-require-path-exists": "^1.1.5",