chore(deps): update dependency express to v4.16.3

Author: renovate-bot

package-lock.json

@@ -44,7 +44,7 @@
     "assert-rejects": "0.1.1",
     "body-parser": "1.18.2",
     "dotenv": "5.0.1",
-    "express": "4.16.2",
+    "express": "4.16.3",
     "jscpd": "0.6.17",
     "mocha": "5.0.4",
     "nyc": "11.4.1",