Update mongodb to the latest version 🚀 (#6656)

* fix(package): update mongodb to version 3.5.7

* chore(package): update lockfile package-lock.json

Co-authored-by: greenkeeper[bot] <23040076+greenkeeper[bot]@users.noreply.github.com>

Author: greenkeeper[bot]

package-lock.json

@@ -44,7 +44,7 @@
     "lodash": "4.17.15",
     "lru-cache": "5.1.1",
     "mime": "2.4.4",
-    "mongodb": "3.5.6",
+    "mongodb": "3.5.7",
     "parse": "2.13.0",
     "pg-promise": "10.5.2",
     "pluralize": "^8.0.0",