fix: upgrade core version to 1.3.1 (#1005)

using the setting `noImplicitAny` will no longer cause build errors

Author: dpopp07

package-lock.json

@@ -88,7 +88,7 @@
     "axios": "^0.18.0",
     "camelcase": "^5.3.1",
     "extend": "~3.0.2",
-    "ibm-cloud-sdk-core": "^1.0.0",
+    "ibm-cloud-sdk-core": "^1.3.1",
     "isstream": "~0.1.2",
     "websocket": "^1.0.28"
   },