fix(package): update fast-csv to version 4.0.2

Closes #26

Author: greenkeeper[bot]

package.json

@@ -23,7 +23,7 @@
     "debug": "~4.1.0",
     "express": "^5.0.0-alpha.7",
     "express-session": "~1.16.0",
-    "fast-csv": "^2.3.0",
+    "fast-csv": "^4.0.2",
     "ioredis": "^4.0.0",
     "lodash": "^4.17.10",
     "moment": "^2.22.2",