fix(package): update find-cache-dir to version 2.0.0 (#385)

Author: greenkeeper[bot]

package.json

@@ -67,7 +67,7 @@
   },
   "dependencies": {
     "chalk": "^2.4.1",
-    "find-cache-dir": "^1.0.0",
+    "find-cache-dir": "^2.0.0",
     "jsonlint": "^1.6.3",
     "lodash": "^4.15.0",
     "mkdirp": "^0.5.1",