fix(package): update fs-extra to version 5.0.0

Author: greenkeeper[bot]

package.json

@@ -35,7 +35,7 @@
     "tslint": "^5.1.0"
   },
   "dependencies": {
-    "fs-extra": "^4.0.2",
+    "fs-extra": "^5.0.0",
     "globby": "^6.1.0",
     "lodash": "^4.17.4",
     "typescript": "^2.2.2"