chore(package): update ts-node to version 8.5.0

Closes #255

Author: greenkeeper[bot]

package.json

@@ -65,7 +65,7 @@
     "qrcode-terminal": "^0.12.0",
     "shx": "^0.3.1",
     "sinon": "^6.0.1",
-    "ts-node": "^7.0.0",
+    "ts-node": "^8.5.0",
     "tslint": "^5.11.0",
     "tslint-config-standard": "^8.0.1",
     "typescript": "^3.0.1",