fix(upgrade-node-core): upgrade node-sdk-core to 4.0.2

Author: moisesatwork

package.json

@@ -38,7 +38,7 @@
     "@types/extend": "^3.0.0",
     "@types/node": "^12.0.8",
     "extend": "^3.0.2",
-    "ibm-cloud-sdk-core": "^2.17.9"
+    "ibm-cloud-sdk-core": "^4.0.2"
   },
   "devDependencies": {
     "@semantic-release/changelog": "^5.0.1",