Update dependency ts-node to v8.4.1

Author: renovate-bot

package-lock.json

@@ -46,7 +46,7 @@
     "rollup-plugin-terser": "5.1.2",
     "rollup-plugin-typescript": "1.0.1",
     "should": "13.2.3",
-    "ts-node": "8.3.0",
+    "ts-node": "8.4.1",
     "tslint": "5.20.0",
     "tslint-config-prettier": "1.18.0",
     "typedoc": "0.15.0",