Downgrade ts-node to v6 again (#1172)

Author: dcodeIO

package-lock.json

@@ -24,7 +24,7 @@
     "binaryen": "91.0.0-nightly.20200310",
     "long": "^4.0.0",
     "source-map-support": "^0.5.16",
-    "ts-node": "^8.6.2"
+    "ts-node": "^6.2.0"
   },
   "devDependencies": {
     "@types/node": "^13.9.1",
@@ -34,7 +34,7 @@
     "physical-cpu-count": "^2.0.0",
     "source-map-support": "^0.5.16",
     "ts-loader": "^6.2.1",
-    "ts-node": "^8.6.2",
+    "ts-node": "^6.2.0",
     "tslint": "^5.20.1",
     "typescript": "^3.8.3",
     "webpack": "^4.42.0",