fix(package): update mime to version 2.1.0

Closes #4443

Author: greenkeeper[bot]

package.json

@@ -30,7 +30,7 @@
     "intersect": "1.0.1",
     "lodash": "4.17.4",
     "lru-cache": "4.1.1",
-    "mime": "2.0.3",
+    "mime": "2.1.0",
     "mongodb": "2.2.33",
     "multer": "1.3.0",
     "parse": "1.11.0",