Update vulnerable version of moment.js

Author: c-w

project-fortis-interfaces/package-lock.json

@@ -60,7 +60,7 @@
     "leaflet.markercluster": "^1.1.0",
     "lodash": "^4.17.4",
     "material-ui": "^0.16.6",
-    "moment": "^2.19.0",
+    "moment": "^2.19.3",
     "msal": "^0.1.3",
     "numeral": "^1.5.3",
     "prop-types": "^15.6.0",