fix(package): update fs-extra to version 6.0.1

Closes #46

Author: greenkeeper[bot]

package.json

@@ -58,7 +58,7 @@
     "console.table": "^0.10.0",
     "cross-spawn": "^6.0.4",
     "debug": "^3.1.0",
-    "fs-extra": "^5.0.0",
+    "fs-extra": "^6.0.1",
     "fuzzy": "^0.1.3",
     "git-url-parse": "^8.1.0",
     "global-modules-path": "^2.0.0",