fix: do not read credentials file in browser

Author: Joy Chang

package-lock.json

@@ -63,7 +63,7 @@
     "husky": "^1.3.1",
     "installed-check": "^2.2.0",
     "jest": "^24.1.0",
-    "jsdoc": "~3.5.5",
+    "jsdoc": "^3.6.1",
     "lint-staged": "~7.2.0",
     "object.assign": "~4.1.0",
     "prettier": "^1.16.4",
@@ -89,7 +89,7 @@
     "extend": "~3.0.2",
     "file-type": "^10.11.0",
     "form-data": "^2.3.3",
-    "ibm-cloud-sdk-core": "^0.1.1",
+    "ibm-cloud-sdk-core": "^0.2.4",
     "isstream": "~0.1.2",
     "mime-types": "^2.1.21",
     "object.omit": "~3.0.0",