Merge pull request #121 from LLK/greenkeeper/mkdirp-1.0.3

chore(package): update mkdirp to version 1.0.3

Author: fsih

package.json

@@ -38,7 +38,7 @@
     "jsdom": "^13.0.0",
     "json": "^9.0.6",
     "lodash.defaultsdeep": "4.6.1",
-    "mkdirp": "^0.5.1",
+    "mkdirp": "^1.0.3",
     "rimraf": "^2.6.1",
     "tap": "^11.0.1",
     "webpack": "^4.8.0",