Merge pull request scratchfoundation#5427 from LLK/greenkeeper/mkdirp-1.0.3

Greenkeeper/mkdirp 1.0.3

Author: fsih

package-lock.json

@@ -78,7 +78,7 @@
     "lodash.pick": "4.4.0",
     "lodash.throttle": "4.0.1",
     "minilog": "3.1.0",
-    "mkdirp": "^0.5.1",
+    "mkdirp": "^1.0.3",
     "omggif": "1.0.9",
     "papaparse": "5.1.1",
     "postcss-import": "^12.0.0",