chore(package): update ts-node to version 7.0.0

Author: greenkeeper[bot]

package.json

@@ -101,7 +101,7 @@
     "sinon-chai": "^3.1.0",
     "source-map-support": "^0.5.6",
     "ts-loader": "^4.4.1",
-    "ts-node": "^6.1.0",
+    "ts-node": "^7.0.0",
     "tslint": "^5.10.0",
     "tslint-config-prettier": "^1.13.0",
     "typescript": "^2.9.1",