chore(package): update rimraf to version 3.0.2

Closes #23

Author: greenkeeper[bot]

package.json

@@ -17,7 +17,7 @@
   },
   "devDependencies": {
     "mkdirp": "^0.5.0",
-    "rimraf": "^2.2.8",
+    "rimraf": "^3.0.2",
     "semantic-release": "^6.3.2",
     "standard": "^10.0.1",
     "tape": "^4.0.0"